Troubleshoot problems updating Windows

Troubleshoot problems updating Windows Applies To Windows 11 Windows 10 Get help with Copilot How do I restore and repair system files? Explain how to remove external hardware. How do I repair hard drive errors? Windows 11 Windows 10 Windows Update is an essential component of Windows 11, ensurin...

Troubleshoot problems updating Windows

Troubleshoot problems updating Windows Applies To Windows 11 Windows 10 Get help with Copilot How do I restore and repair system files? Explain how to remove external hardware. How do I repair hard drive errors? Windows 11 Windows 10 Windows Update is an essential component of Windows 11, ensurin...

July 18, 2026—KB5121767 (OS Builds 26200.8894 and 26100.8894) Out-of-band

July 18, 2026—KB5121767 OS Builds 26200.8894 and 26100.8894 Out-of-band Applies To Windows 11 version 25H2, all editions Windows 11 version 24H2, all editions This out-of-band OOB update for Windows 11, version 25H2 and Windows 11, version 24H2 KB5121767 is cumulative. It includes all improvement...

Microsoft Patches a Record 570 Security Flaws

Microsoft Corp. today released software updates to plug at least 570 security holes in its Windows operating systems and other software, almost triple the number of vulnerabilities the software giant fixed in its record-smashing Patch Tuesday release last month. Microsoft attributed the burgeonin...

Azure File Sync Agent V22.4 - June 2026

Azure File Sync Agent V22.4 - June 2026 This article describes the improvements and issues that are fixed in the Azure File Sync Agent v22.4 release that is dated June 2026. Additionally, this article contains installation instructions for this release. Improvements and issues that are fixed Serv...

PT-2026-50548

Public exploit code has been released for four Linux kernel vulnerabilities, each allowing a local user to escalate privileges to root. While kernel maintainers have patched all four over the past few weeks, the public availability of working exploits means any unpatched system is now at immediat...

KLA91069 ACE vulnerability in Microsoft Dynamics

A remote code execution vulnerability was found in Microsoft Dynamics. Malicious users can exploit this vulnerability to execute arbitrary code. Original advisories CVE-2026-23652 Exploitation CVE list CVE-2026-23652 critical KB list Solution Install necessary updates from the KB section, that ar...

May 12, 2026—KB5087544 (OS Builds 19045.7291 and 19044.7291)

May 12, 2026—KB5087544 OS Builds 19045.7291 and 19044.7291 Applies To Windows 10 ESU Windows 10 Enterprise LTSC 2021 Windows 10 IoT Enterprise LTSC 2021 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026...

CVE-2026-42248 Missing Signature Verification for Updates in Ollama

Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike other platforms, the Windows implementation of the update verification routine unconditionally returns success so no digital signature or trust validation is performed before stagin...

CVE-2026-42248

Affected product : Ollama for Windows. Vulnerabilities covered : CVE-2026-42248 (Missing signature verification for updates) and CVE-2026-42249 (Path traversal in update mechanism). Root cause : Windows update flow does not verify integrity/authenticity of downloaded update executables (CVE-2026-...

Ollama security vulnerabilities

Ollama is an open-source tool developed by Ollama that can be run locally, used for managing and customizing large language models. Versions of Ollama from 0.12.10 to 0.17.5 have security vulnerabilities. These vulnerabilities stem from the lack of integrity or authenticity verification when...

PT-2026-35911

Name of the Vulnerable Software and Affected Versions Ollama for Windows versions 0.12.10 through 0.17.5 Description Ollama for Windows fails to verify the integrity or authenticity of downloaded update executables. The update verification routine on Windows unconditionally returns success,...

KLA90936 OSI vulnerability in Microsoft Office

An information disclosure vulnerability was found in Microsoft Office. Malicious users can exploit this vulnerability to obtain sensitive information. Original advisories CVE-2026-26133 Exploitation Related products Microsoft-Outlook Microsoft-Excel Microsoft-Word CVE list CVE-2026-26133 high...

March 10, 2026—KB5078885 (OS Builds 19045.7058 and 19044.7058)

March 10, 2026—KB5078885 OS Builds 19045.7058 and 19044.7058 Applies To Windows 10 ESU Windows 10 Enterprise LTSC 2021 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of...

February 10, 2026—KB5075912 (OS Builds 19045.6937 and 19044.6937)

February 10, 2026—KB5075912 OS Builds 19045.6937 and 19044.6937 Applies To Windows 10 ESU Windows 10 Enterprise LTSC 2021 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability o...

December Patch Tuesday fixes three zero-days, including one that hijacks Windows devices

These updates from Microsoft fix serious security issues, including three that attackers are already exploiting to take control of Windows systems. In total, the security update resolves 57 Microsoft security vulnerabilities. Microsoft isn't releasing new features for Windows 10 anymore, so Windo...

Update now: November Patch Tuesday fixes Windows zero-day exploited in the wild

These updates fix serious security issues — including one that attackers are already exploiting to take control of Windows systems. By chaining it with other attacks, they can gain full admin access, install malware, steal data, or make deeper changes you wouldn’t normally be able to undo. Run...

Patch Tuesday, October 2025 ‘End of 10’ Edition

Microsoft today released software updates to plug a whopping 172 security holes in its Windows operating systems, including at least two vulnerabilities that are already being actively exploited. October's Patch Tuesday also marks the final month that Microsoft will ship security updates for...

Cert CC: CVE-2025-2884 Out-of-Bounds read vulnerability in TCG TPM2.0 reference implementation

CVE-2025-2884 is regarding a vulnerability in TCG TPM2.0 Reference implementation's CryptHmacSign helper function that is vulnerable to Out-of-Bounds read due to the lack of validation the signature scheme with the signature key's algorithm. CERT/CC created this CVE on their behalf. The documente...

KLA88413 RCE vulnerability in OmniParser

A remote code execution vulnerability was found in OmniParser. Malicious users can exploit this vulnerability to execute arbitrary code, bypass security restrictions. Original advisories CVE-2025-55322 Exploitation Public exploits exist for this vulnerability. Related products OmniParser CVE list...