OS List - 2026 2025 2024 2023 2021 2020 2019 2018 2017 2016
DATE | NAME |
Info | CATEG. |
WEB |
| 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 |