OS List - 2026 2025 2024 2023 2021 2020 2019 2018 2017 2016
DATE | NAME |
Info | CATEG. |
WEB |
| 13.5.26 | Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE Flaws | Microsoft on Tuesday released patches for 138 security vulnerabilities spanning its product portfolio, although none of them have been listed as | OS | The Hacker News |
| 13.5.26 | Microsoft May 2026 Patch Tuesday | Today's Microsoft patch Tuesday fixes 137 different vulnerabilities. In addition, the update addresses 137 Chromium-related issues affecting Microsoft Edge. | OS | SANS |
| 12.5.26 | Apple Patches Everything | Apple today released its typical feature update across it's operating systems (iOS, iPadOS, macOS, tvOS, watchOS, vision OS). | OS | SANS |
| 12.5.26 | iOS 26.5 Brings Default End-to-End Encrypted RCS Messaging Between iPhone and Android | Apple on Monday officially released iOS 26.5 with support for end-to-end encryption (E2EE) to Rich Communication Services (RCS) in beta as part of a "cross-industry effort" to replace traditional SMS with a more secure alternative. | OS | The Hacker News |
| 9.5.26 | Google now offers up to $1.5 million for some Android exploits | Google overhauls its Android and Chrome vulnerability rewards programs, offering bounties of up to $1.5 million for the most difficult exploits while scaling back payouts for flaws that artificial intelligence (AI) has made easier to find. | OS | BleepingComputer |
| 9.5.26 | Microsoft confirms April Windows updates cause backup failures | Microsoft has confirmed that the April 2026 security updates are causing failures in third-party backup applications using the psmounterex.sys driver. | OS | BleepingComputer |
| 3.5.26 | Microsoft tests modern Windows Run, says it's faster than legacy dialog | Microsoft has confirmed that Windows 11 is getting a new modern Run dialog with dark mode support and faster performance in a new preview build. | OS | BleepingComputer |
| 3.5.26 | Microsoft fixes Remote Desktop warnings displaying incorrectly | Microsoft has fixed a known issue causing newly introduced Windows security warnings to display incorrectly when opening Remote Desktop (.rdp) files. | OS | |
| 3.5.26 | Microsoft now lets admins choose pre-installed Store apps to uninstall | Microsoft has updated a Windows 11 in-box app removal policy introduced in October to include a dynamic list that lets IT admins choose which preinstalled Store apps to uninstall. | OS | |
| 3.5.26 | Windows 11 KB5083631 update released with 34 changes and fixes | Microsoft has released the KB5083631 optional cumulative update for Windows 11, which includes 34 changes, such as a new Xbox mode for Windows PCs, enhanced security and performance for batch files, and performance improvements for launching startup apps. | OS | BleepingComputer |
| 3.5.26 | April KB5083769 Windows 11 update causes backup software failures | The April 2026 KB5083769 security update breaks third-party backup applications from multiple vendors on systems running Windows 11 24H2 and 25H2. | OS | BleepingComputer |
| 2.5.26 | Microsoft says backend change broke Teams Free chat and calls | Microsoft is working to resolve a known issue that prevents some Microsoft Teams Free users from chatting and calling others. | OS | |
| 2.5.26 | Microsoft to deprecate legacy TLS in Exchange Online starting July | Microsoft says it will start blocking legacy TLS connections for POP and IMAP email clients in Exchange Online starting in July 2026. | OS | |
| 2.5.26 | Microsoft: New Remote Desktop warnings may display incorrectly | Microsoft has confirmed a new issue causing newly introduced Windows security warnings to display incorrectly when opening Remote Desktop (.rdp) files. | OS | |
| 2.5.26 | Microsoft asks iPhone users to reauthenticate after Outlook outage | After addressing a widespread outage that affected Outlook.com users worldwide on Monday, Microsoft has asked iPhone users to re-enter their credentials to regain access to their Outlook and Hotmail accounts via the default Mail app. | OS | BleepingComputer |
| 2.5.26 | Microsoft says Outlook.com outage is causing sign‑in failures | Microsoft is investigating an ongoing Outlook.com outage that is causing intermittent signing issues and preventing customers from accessing their mailboxes. | OS | |
| 2.5.26 | Microsoft rolls out revamped Windows Insider Program | Microsoft says it's rolling out a revamped Windows Insider Program experience as part of the broader plans to address performance and reliability concerns affecting Windows 11. | OS | BleepingComputer |
| 2.5.26 | Windows Update gets new controls to reduce forced restarts | Microsoft is rolling out Windows Update improvements that give users more control over how updates are installed while reducing disruption from frequent or poorly timed restarts. | OS | BleepingComputer |
| 26.4.26 | Microsoft to roll out Entra passkeys on Windows in late April | Microsoft will roll out passkey support for phishing-resistant passwordless authentication to Microsoft Entra‑protected resources from Windows devices starting late April. | OS | |
| 26.4.26 | Microsoft now lets admins uninstall Copilot on enterprise devices | Microsoft says IT administrators can now uninstall the AI-powered Copilot digital assistant from enterprise devices using a new policy setting, which has become broadly available after the April 2026 Patch Tuesday. | OS | BleepingComputer |
| 26.4.26 | Microsoft: Some Teams users can’t join meetings after Edge update | Microsoft confirmed that a recent Microsoft Edge browser update introduced a bug that prevents Windows users from joining Teams meetings. | OS | |
| 26.4.26 | Apple fixes bug that let the FBI recover deleted Signal messages | Apple has released out-of-band security updates for iPhone and iPad devices to fix a Notification Services flaw that could allow notifications marked for deletion to remain stored on the device | OS | BleepingComputer |
| 26.4.26 | Microsoft Teams to get efficiency mode on PCs with limited resources | Microsoft is preparing to roll out a new Efficiency Mode for Microsoft Teams for systems with limited CPU and memory resources to improve app responsiveness. | OS | |
| 26.4.26 | Microsoft traces Universal Print issues to Graph API code change | Microsoft says that an ongoing Universal Print sharing issue that prevents users from creating some printer shares is due to a Microsoft Graph API code change. | OS | BleepingComputer |
| 24.4.26 | Apple Patches Exploited Notification Flaw | Apple yesterday released iOS/iPadOS 26.4.2 and iOS/iPadOS 18.7.8. This update fixes a single Notification Services vulnerability, CVE-2026-28950: | OS | SANS |
| 23.4.26 | Microsoft: Teams increasingly abused in helpdesk impersonation attacks | Microsoft is warning of threat actors increasingly abusing external Microsoft Teams collaboration and relying on legitimate tools for access and lateral movement on enterprise networks. | OS | BleepingComputer |
| 23.4.26 | Microsoft tests Windows Explorer speed, performance improvements | Microsoft is rolling out multiple File Explorer changes to Windows 11 users in the Insider program, including improvements to launch speed and performance | OS | |
| 23.4.26 | Microsoft pulls service update causing Teams launch failures | Microsoft has reverted a recent service update that was preventing some customers from launching the Microsoft Teams desktop client. | OS | BleepingComputer |
| 23.4.26 | Microsoft releases emergency updates to fix Windows Server issues | Microsoft has released out-of-band (OOB) updates to fix issues affecting Windows Server systems after installing the April 2026 security updates. | OS | BleepingComputer |
| 23.4.26 | Apple Patches iOS Flaw That Stored Deleted Signal Notifications in FBI Forensic Case | Apple has rolled out a software fix for iOS and iPadOS to address a Notification Services flaw that stored notifications marked for deletion on the | OS | The Hacker News |
| 19.4.26 | Microsoft Teams right-click paste broken by Edge update bug | Microsoft is warning that a recent Microsoft Edge browser update introduced a bug that breaks right-click paste in chats in the Microsoft Teams desktop client. | OS | |
| 19.4.26 | Microsoft: Some Windows servers enter reboot loops after April patches | Microsoft warns that some Windows domain controllers are entering restart loops after installing the April 2026 security updates. | OS | |
| 19.4.26 | Microsoft: April Windows Server 2025 update may fail to install | Microsoft is investigating an issue causing this month's KB5082063 security update to fail to install on some Windows Server 2025 systems. | OS | BleepingComputer |
| 19.4.26 | Microsoft: April updates trigger BitLocker key prompts on some servers | Microsoft confirmed on Tuesday that some Windows Server 2025 devices will boot into BitLocker recovery after installing the April 2026 KB5082063 Windows security update. | OS | |
| 19.4.26 | Microsoft fixes bug behind Windows Server 2025 automatic upgrades | Microsoft has finally fixed a known issue that was causing systems running Windows Server 2019 and 2022 to "unexpectedly" upgrade to Windows Server 2025. | OS | |
| 18.4.26 | Microsoft adds Windows protections for malicious Remote Desktop files | Microsoft has introduced new Windows protections to defend against phishing attacks that abuse Remote Desktop connection (.rdp) files, adding warnings and disabling risky shared resources by default. | OS | |
| 18.4.26 | Microsoft releases Windows 10 KB5082200 extended security update | Microsoft has released the Windows 10 KB5082200 extended security update to fix the April 2026 Patch Tuesday vulnerabilities, including 2 zero-days. | OS | |
| 18.4.26 | Windows 11 cumulative updates KB5083769 & KB5082052 released | Microsoft has released Windows 11 KB5083769 and KB5082052 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. | OS | BleepingComputer |
| 18.4.26 | Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days | Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities. | OS | |
| 18.4.26 | Microsoft rolls out fast-track to reinstate Windows hardware dev accounts | Microsoft has rolled out a fast-track process to help developers regain access to accounts recently suspended from its Windows Hardware Program, following widespread complaints that they were locked out without warning. | OS | |
| 18.4.26 | Google Blocks 8.3B Policy-Violating Ads in 2025, Launches Android 17 Privacy Overhaul | Google this week announced a new set of Play policy updates to strengthen user privacy and protect businesses against fraud, even as it revealed it | OS | The Hacker News |
| 16.4.26 | Microsoft Patch Tuesday April 2026. | This month's Microsoft Patch Tuesday looks like a record one, but let's look at it a bit closer to understand what is happening The update patches a total of 243 vulnerabilities. | OS | SANS |
| 15.4.26 | Microsoft Issues Patches for SharePoint Zero-Day and 168 Other New Vulnerabilities | Microsoft on Tuesday released updates to address a record 169 security flaws across its product portfolio, including one vulnerability that has been | OS | The Hacker News |
| 12.4.26 | Microsoft rolls out fix for broken Windows Start Menu search | Microsoft has pushed a server-side fix for a known issue that broke the Windows Start Menu search feature on some Windows 11 23H2 devices. | OS | BleepingComputer |
| 11.4.26 | Microsoft fixes Classic Outlook bug causing email delivery issues | Microsoft has resolved a known issue that was preventing some Classic Outlook users from sending emails via Outlook.com. | OS | BleepingComputer |
| 11.4.26 | Microsoft removes Support and Recovery Assistant from Windows | Microsoft has deprecated and removed the Support and Recovery Assistant (SaRA) command-line utility from all in-support versions of Windows updates starting March 10. | OS | |
| 6.4.26 | Microsoft still working to fix Exchange Online mailbox access issues | Microsoft is investigating and working to resolve Exchange Online mailbox access issues that have intermittently affected Outlook mobile and macOS users for weeks. | OS | BleepingComputer |
| 6.4.26 | Man admits to locking thousands of Windows devices in extortion plot | A former core infrastructure engineer has pleaded guilty to locking Windows admins out of 254 servers as part of a failed extortion plot targeting his employer, an industrial company headquartered in Somerset County, New Jersey. | OS | BleepingComputer |
| 6.4.26 | Microsoft now force upgrades unmanaged Windows 11 24H2 PCs | Starting this week, Microsoft has begun force-upgrading unmanaged devices running Windows 11 24H2 Home and Pro editions to Windows 11 25H2. | OS | |
| 5.4.26 | Microsoft links Classic Outlook issue to email delivery problems | Microsoft links Classic Outlook issue to email delivery problems | OS | |
| 5.4.26 | Apple expands iOS 18 updates to more iPhones to block DarkSword attacks | Apple has now made it possible for more iPhones still running iOS 18 to receive security updates that protect against the actively exploited DarkSword exploit kit. | OS | |
| 5.4.26 | New Windows 11 emergency update fixes preview update install issues | Microsoft released an emergency update to fix the March 2026 KB5079391 non-security preview update, which was pulled over the weekend due to installation issues. | OS | |
| 3.4.26 | New SparkCat Variant in iOS, Android Apps Steals Crypto Wallet Recovery Phrase Images | Cybersecurity researchers have discovered a new version of the SparkCat malware on the Apple App Store and Google Play Store, more than a year after | OS | The Hacker News |
| 2.4.26 | Apple Expands iOS 18.7.7 Update to More Devices to Block DarkSword Exploit | Apple on Wednesday expanded the availability of iOS 18.7.7 and iPadOS 18.7.7 to a broader range of devices to protect users from the risk posed by a | OS | The Hacker News |
| 1.4.26 | Apple adds macOS Terminal warning to block ClickFix attacks | Apple has introduced a security feature in macOS Tahoe 26.4 that blocks pasting and executing potentially harmful commands in Terminal and alerts users to possible risks. | OS | |
| 1.4.26 | Microsoft pulls KB5079391 Windows update over install issues | Microsoft has pulled a buggy Windows 11 non-security preview update to investigate a known issue that triggers 0x80073712 errors during installation. | OS | BleepingComputer |
| 1.4.26 | Android Developer Verification Rollout Begins Ahead of September Enforcement | Google on Monday said it's officially rolling out Android developer verification to all developers to combat the problem of bad actors distributing harmful | OS | The Hacker News |
| 29.3.26 | Windows 11 KB5079391 update rolls out Smart App Control improvements | Microsoft has released the KB5079391 preview cumulative update for Windows 11 24H2 and 25H2, which includes 29 changes, such as Smart App Control and Display improvements. | OS | |
| 29.3.26 | Coruna iOS exploit framework linked to Triangulation attacks | The Coruna exploit kit is an evolution of the framework used in the Operation Triangulation espionage campaign, which in 2023 targeted iPhones via zero-click iMessage exploits. | OS | |
| 28.3.26 | Apple Sends Lock Screen Alerts to Outdated iPhones Over Active Web-Based Exploits | Apple is now sending Lock Screen notifications to iPhones and iPads running older versions of iOS and iPadOS to alert users of web-based attacks and urge | OS | The Hacker News |
| 28.3.26 | Kali Linux 2026.1 released with 8 new tools, new BackTrack mode | Kali Linux 2026.1, the first release of the year, is now available for download, featuring 8 new tools, a theme refresh, and a new BackTrack mode for Kali-Undercover. | OS | |
| 26.3.26 | Microsoft Exchange Online service change causes email access issues | Microsoft is working to address an ongoing service issue that has intermittently prevented some users from accessing their cloud-based Exchange Online mailboxes via Outlook mobile and Mac desktop clients since Thursday. | OS | BleepingComputer |
| 26.3.26 | New KB5085516 emergency update fixes Microsoft account sign-in | Microsoft has released an emergency update to address a major issue that breaks sign-ins with Microsoft accounts across multiple Microsoft apps, including Teams and OneDrive. | OS | BleepingComputer |
| 26.3.26 | Coruna iOS Kit Reuses 2023 Triangulation Exploit Code in New Mass Attacks | The kernel exploit for two security vulnerabilities used in the recently uncovered Apple iOS exploit kit known as Coruna is an updated version of the | OS | The Hacker News |
| 22.3.26 | Microsoft: March Windows updates break Teams, OneDrive sign-ins | Microsoft says the March Windows 11 update breaks sign-ins with Microsoft accounts across multiple Microsoft apps, including Teams and OneDrive. | OS | |
| 21.3.26 | Apple pushes first Background Security Improvements update to fix WebKit flaw | Apple has released its first Background Security Improvements update to fix a WebKit flaw tracked as CVE-2026-20643 on iPhones, iPads, and Macs without requiring a full operating system upgrade. | OS | |
| 20.3.26 | Google Adds 24-Hour Wait for Unverified App Sideloading to Reduce Malware and Scams | Google on Thursday announced a new "advanced flow" for Android sideloading that requires a mandatory 24-hour wait period to install apps from unverified | OS | The Hacker News |
| 20.3.26 | Microsoft shares fix for Windows C: drive access issues on Samsung PCs | Microsoft has shared guidance to fix C:\ drive access issues and app failures on some Samsung laptops running Windows 11, versions 25H2 and 24H2. | OS | |
| 20.3.26 | New Windows 11 hotpatch fixes Bluetooth device visibility issue | Microsoft has released an emergency update to fix a Bluetooth device visibility issue on hotpatch-enabled Windows 11 Enterprise devices. | OS | |
| 20.3.26 | Microsoft: Enabling Teams Meeting add-in breaks Outlook Classic | Microsoft is working to address a known issue that renders the classic Outlook email client unusable for users who have enabled the Microsoft Teams Meeting Add-in. | OS | |
| 20.3.26 | Apple Warns Older iPhones Vulnerable to Coruna, DarkSword Exploit Kit Attacks | Apple is urging users who are still running an outdated version of iOS to update their iPhones to secure against web-based attacks carried out via | OS | The Hacker News |
| 19.3.26 | Microsoft Exchange Online outage blocks access to mailboxes | Microsoft is working to address an ongoing Exchange Online outage that is preventing customers from accessing their mailboxes and calendars. | OS | |
| 19.3.26 | Microsoft pulls Samsung app blocking Windows C: drive from Store | Microsoft has removed the Samsung Galaxy Connect app from the Microsoft Store because it was causing issues on specific Samsung Galaxy Book 4 and desktop models running Windows 11 | OS | |
| 19.3.26 | Microsoft releases Windows 11 OOB hotpatch to fix RRAS RCE flaw | Microsoft has released an out-of-band (OOB) update to fix a security vulnerabilities affecting Windows 11 Enterprise devices that receive hotpatch updates instead of the regular Patch Tuesday cumulative updates. | OS | BleepingComputer |
| 18.3.26 | Apple Fixes WebKit Vulnerability Enabling Same-Origin Policy Bypass on iOS and macOS | Apple on Tuesday released its first round of Background Security Improvements to address a security flaw in WebKit that affects iOS, iPadOS, | OS | The Hacker News |
| 16.3.26 | Android 17 Blocks Non-Accessibility Apps from Accessibility API to Prevent Malware Abuse | Google is testing a new security feature as part of Android Advanced Protection Mode (AAPM) that prevents certain kinds of apps from using the | OS | The Hacker News |
| 15.3.26 | Microsoft: Windows 11 users can't access C: drive on some Samsung PCs | Microsoft is investigating a new issue affecting some Samsung laptops running Windows 11 after installing the February 2026 security updates, in which users lose access to their C:\ drive and are unable to launch applications. | OS | |
| 15.3.26 | Microsoft investigates classic Outlook sync and connection issues | Microsoft is investigating several issues causing email synchronization and connection problems when using the classic Outlook desktop client. | OS | BleepingComputer |
| 15.3.26 | Apple patches older iPhones and iPads against Coruna exploits | Apple has released security updates to patch older iPhones and iPads against a set of vulnerabilities targeted in cyberespionage and crypto-theft attacks using the Coruna exploit kit. | OS | BleepingComputer |
| 14.3.26 | Microsoft to enable Windows hotpatch security updates by default | Microsoft will turn on hotpatch security updates by default for all eligible Windows devices managed through Microsoft Intune and the Microsoft Graph API, beginning with the May 2026 Windows security update. | OS | |
| 12.3.26 | Apple Issues Security Updates for Older iOS Devices Targeted by Coruna WebKit Exploit | Apple on Wednesday backported fixes for a security flaw in iOS, iPadOS, and macOS Sonoma to older versions after it was found to be used as part of the | OS | The Hacker News |
| 12.3.26 | Six Android Malware Families Target Pix Payments, Banking Apps, and Crypto Wallets | Cybersecurity researchers have discovered half-a-dozen new Android malware families that come with capabilities to steal data from compromised devices | OS | The Hacker News |
| 12.3.26 | Microsoft still working to fix Windows Explorer white flashes | Microsoft has confirmed that it's still working to fully address a known issue that causes bright white flashes when opening the File Explorer on some Windows 11 systems. | OS | |
| 11.3.26 | Microsoft Patches 84 Flaws in March Patch Tuesday, Including Two Public Zero-Days | Microsoft on Tuesday released patches for a set of 84 new security vulnerabilities affecting various software components, including two that have | OS | The Hacker News |
| 8.3.26 | CISA warns feds to patch iOS flaws exploited in crypto-theft attacks | CISA ordered U.S. federal agencies to patch three iOS security flaws targeted in cyberespionage and crypto-theft attacks using the Coruna exploit kit. | OS | |
| 7.3.26 | Bitwarden adds support for passkey login on Windows 11 | Bitwarden announced support for logging into Windows 11 devices using passkeys stored in the manager's vault, enabling phishing-resistant authentication. | OS | |
| 7.3.26 | Windows 10 KB5075039 update fixes broken Recovery Environment | Microsoft has released the KB5075039 Windows Recovery Environment update for Windows 10 to fix a long-standing issue that prevented some users from accessing the Recovery environment. | OS | |
| 5.3.26 | Android gets patches for Qualcomm zero-day exploited in attacks | Google has released security updates to patch 129 Android security vulnerabilities, including an actively exploited zero-day flaw in a Qualcomm display component. | OS | |
| 1.3.26 | Microsoft testing Windows 11 batch file security improvements | Microsoft is rolling out new Windows 11 Insider Preview builds that improve security and performance during batch file or CMD script execution. | OS | |
| 1.3.26 | Microsoft expands Windows restore to more enterprise devices | Microsoft now allows more enterprise users to restore their personal settings and Microsoft Store apps from a previous Windows 11 device. | OS | |
| 28.2.26 | Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool | Microsoft has released the KB5077241 optional cumulative update for Windows 11, which comes with 29 changes, including improvements to BitLocker, a new network speed test tool, and native System Monitor (Sysmon) functionality. | OS | |
| 28.2.26 | Android mental health apps with 14.7M installs filled with security flaws | Several mental health mobile apps with millions of downloads on Google Play contain security vulnerabilities that could expose users' sensitive medical information. | OS | |
| 28.2.26 | Microsoft says bug in classic Outlook hides the mouse pointer | Microsoft is investigating a known issue that causes the mouse pointer to disappear in the classic Outlook desktop email client for some users. | OS | |
| 21.2.26 | Microsoft Teams outage affects users in United States, Europe | Microsoft is working to resolve an ongoing outage affecting Microsoft Teams users, causing delays and preventing some from accessing the service. | OS | |
| 21.2.26 | New Keenadu backdoor found in Android firmware, Google Play apps | A newly discovered and sophisticated Android malware called Keenadu has been found embedded in firmware from multiple device brands, enabling it to compromise all installed applications and gain unrestricted control over infected devices. | OS | |
| 19.2.26 | Windows 11 KB5077181 fixes boot failures linked to failed updates | Microsoft says it has resolved a Windows 11 bug that caused some commercial systems to fail to boot with an "UNMOUNTABLE_BOOT_VOLUME" error after installing recent security updates, with the fix delivered in the February 2026 Patch Tuesday update. | OS | |
| 17.2.26 | Apple Tests End-to-End Encrypted RCS Messaging in iOS 26.4 Developer Beta | Apple on Monday released a new developer beta of iOS and iPadOS with support for end-to-end encryption (E2EE) in Rich Communications Services ( | OS | The Hacker News |
| 14.2.26 | Apple fixes zero-day flaw used in 'extremely sophisticated' attacks | Apple has released security updates to fix a zero-day vulnerability that was exploited in an "extremely sophisticated attack" targeting specific individuals. | OS | |
| 14.2.26 | Windows 11 Notepad flaw let files execute silently via Markdown links | Microsoft has fixed a "remote code execution" vulnerability in Windows 11 Notepad that allowed attackers to execute local or remote programs by tricking users into clicking specially crafted Markdown links, without displaying any Windows security warnings. | OS | |
| 13.2.26 | Microsoft releases Windows 11 26H1 for select and upcoming CPUs | Microsoft has announced Windows 11 26H1, but it's not for existing PCs. Instead, it will ship on devices with Snapdragon X2 processors and possibly other rumored ARM chips.w | OS | |
| 13.2.26 | Microsoft releases Windows 10 KB5075912 extended security update | Microsoft has released the Windows 10 KB5075912 extended security update to fix February 2026 Patch Tuesday vulnerabilities, including six zero-days, and continue rolling out replacements for expiring Secure Boot certificates. | OS | |
| 13.2.26 | Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws | Today is Microsoft's February 2026 Patch Tuesday with security updates for 58 flaws, including 6 actively exploited and three publicly disclosed zero-day vulnerabilities. | OS | |
| 13.2.26 | Windows 11 KB5077181 & KB5075941 cumulative updates released | Microsoft has released Windows 11 KB5077181 and KB5075941 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. | OS | |
| 12.2.26 | Microsoft announces new mobile-style Windows security controls | Microsoft wants to introduce smartphone-style app permission prompts in Windows 11 to request user consent before apps can access sensitive resources such as files, cameras, and microphones. | OS | |
| 11.2.26 | Microsoft Patches 59 Vulnerabilities Including Six Actively Exploited Zero-Days | Microsoft on Tuesday released security updates to address a set of 59 flaws across its software, including six vulnerabilities that it said have been exploited | OS | The Hacker News |
| 8.2.26 | Microsoft to shut down Exchange Online EWS in April 2027 | Microsoft announced today that the Exchange Web Services (EWS) API for Exchange Online will be shut down in April 2027, after nearly 20 years. | OS | |
| 7.2.26 | Microsoft: January update shutdown bug affects more Windows PCs | Microsoft has confirmed that a known issue preventing some Windows 11 devices from shutting down also affects Windows 10 systems with Virtual Secure Mode (VSM) enabled. | OS | |
| 7.2.26 | Microsoft fixes bug causing password sign-in option to disappear | Microsoft has fixed a known issue that was causing the password sign-in option to disappear from the lock screen options after installing Windows 11 updates released since August 2025. | OS | |
| 7.2.26 | New Apple privacy feature limits location tracking on iPhones, iPads | Apple is introducing a new privacy feature that lets users limit the precision of location data shared with cellular networks on some iPhone and iPad models. | OS | |
| 3.2.26 | Microsoft fixes Outlook bug blocking access to encrypted emails | Microsoft has fixed a known issue that prevented Microsoft 365 customers from opening encrypted emails in classic Outlook after a recent update. | OS | |
| 3.2.26 | Microsoft to disable NTLM by default in future Windows releases | Microsoft announced that it will disable the 30-year-old NTLM authentication protocol by default in upcoming Windows releases due to security vulnerabilities that expose organizations to cyberattacks. | OS | |
| 3.2.26 | Windows 11 KB5074105 update fixes boot, sign-in, and activation issues | Microsoft has released the KB5074105 preview cumulative update for Windows 11 systems, which includes 32 changes, including fixes for sign-in, boot, and activation issues. | OS | |
| 3.2.26 | Microsoft links Windows 11 boot failures to failed December 2025 update | Microsoft has linked recent reports of Windows 11 boot failures after installing the January 2026 updates to previously failed attempts to install the December 2025 security update, which left systems in an "improper state." | OS | |
| 3.2.26 | Google rolls out Android theft protection feature updates | Google has introduced stronger Android authentication safeguards and enhanced recovery tools to make smartphones more challenging targets for thieves. | OS | |
| 3.2.26 | Microsoft investigates Windows 11 boot failures after January updates | Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors after installing the January 2026 Patch Tuesday security updates. | OS | |
| 25.1.26 | Microsoft releases emergency OOB update to fix Outlook freezes | Microsoft has released emergency, out-of-band updates on Saturday for Windows 10, Windows 11, and Windows Server to fix an issue that prevented Microsoft Outlook classic from opening when using PSTs stored in cloud storage. | OS | |
| 25.1.26 | Microsoft: Outlook for iOS crashes, freezes due to coding error | Microsoft confirmed today that Outlook mobile may crash or freeze when launched on iPad devices due to a coding error. | OS | |
| 25.1.26 | Microsoft shares workaround for Outlook freezes after Windows update | Microsoft shared a temporary workaround for customers experiencing Outlook freezes after installing this month's Windows security updates. | OS | |
| 25.1.26 | Microsoft PowerToys adds new CursorWrap mouse 'teleport' tool | Microsoft has released PowerToys 0.97, with a new mouse utility for multi-monitor setups and significant improvements to the Command Palette quick launcher. | OS | |
| 25.1.26 | Microsoft releases OOB Windows updates to fix shutdown, Cloud PC bugs | Microsoft has released multiple emergency, out-of-band updates for Windows 10, Windows 11, and Windows Server to fix two issues caused by the January Patch Tuesday updates. | OS | |
| 18.1.26 | Microsoft: Windows 11 update causes Outlook freezes for POP users | Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze and hang for users with POP email accounts. | OS | |
| 18.1.26 | Microsoft: Some Windows PCs fail to shut down after January update | Microsoft has confirmed a new issue that prevents Windows 11 23H2 devices with System Guard Secure Launch enabled from shutting down. | OS | |
| 18.1.26 | Microsoft Copilot Studio extension for VS Code now publicly available | Microsoft announced that the Copilot Studio extension for the Visual Studio Code (VS Code) integrated development environment is now available to all users. | OS | |
| 18.1.26 | Microsoft: Windows update blocks access to Cloud PC sessions | Microsoft confirmed that a recent Windows update is blocking customers from accessing their Microsoft 365 Cloud PC sessions. | OS | |
| 18.1.26 | New Windows updates replace expiring Secure Boot certificates | Microsoft has started rolling out new Secure Boot certificates that will automatically install on eligible Windows 11 24H2 and 25H2 systems. | OS | |
| 17.1.26 | Microsoft releases Windows 10 KB5073724 extended security update | Microsoft has released the KB5073724 extended security update to fix the Patch Tuesday security updates, including 3 zero-days and a fix for expiring Secure Boot certificates. | OS | |
| 17.1.26 | Windows 11 KB5074109 & KB5073455 cumulative updates released | Microsoft has released Windows 11 KB5074109 and KB5073455 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. | OS | |
| 17.1.26 | Microsoft January 2026 Patch Tuesday fixes 3 zero-days, 114 flaws | Today is Microsoft's January 2026 Patch Tuesday with security updates for 114 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities. | OS | |
| 17.1.26 | Google confirms Android bug causing volume key issues | Google has confirmed a software bug that is preventing volume buttons from working correctly on Android devices with accessibility features enabled. | OS | |
| 14.1.26 | Microsoft Fixes 114 Windows Flaws in January 2026 Patch, One Actively Exploited | Microsoft on Tuesday rolled out its first security update for 2026 , addressing 114 security flaws, including one vulnerability that it said has been actively exploited in the wild. Of the | OS | The Hacker News |