CVE-2026-41091
MI
Microsoft Defender
Microsoft Defender Link Following Vulnerability
What it is
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor notices and references
- msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-41091
- nvd.nist.gov/vuln/detail/CVE-2026-41091
Description and required action as published by CISA. Full record at NVD.
Other Microsoft entries on the list
- Office Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability CVE-2026-124194 · Nov 10, 2026
- Windows Microsoft Windows Command Injection Vulnerability CVE-2026-96951 · Oct 13, 2026
- SharePoint Microsoft SharePoint Code Injection Vulnerability CVE-2026-65660 · Sep 25, 2026
- Windows Microsoft Windows Heap-Based Buffer Overflow Vulnerability CVE-2026-85880 · Sep 8, 2026
- Windows Microsoft Windows Link Following Vulnerability CVE-2026-81963 · Sep 8, 2026
- SQL Server Microsoft SQL Server Remote Code Execution Vulnerability CVE-2019-1068 · Aug 26, 2026