CVE-2026-41091: Microsoft Defender Link Following Vulnerability
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally. Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
· high severity · unattributed attribution
Evidence and provenance
- Original source
- CISA KEV report ↗
- Published
- 2026-05-20T00:00:00Z
- Confidence basis
- No actor match
- Record ID
af6a3c8ca9a7d2116894
Vulnerabilities
CVE-2026-41091
Use and citation
Verify the original report before making operational decisions. Cite this permanent page together with the original source, publication date, confidence level, and review status.