CVE-2026-41091
Microsoft Defender Elevation of Privilege Vulnerability
- State
- Published
- Severity
- 7.8 High
- Published
- May 20, 2026
- Updated
- Aug 10, 2026
- Reserved
- Apr 16, 2026
Description
Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
Weaknesses
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
Affected Products
| Product | Versions |
|---|---|
Microsoft Malware Protection EngineMicrosoft |
|
References
- Microsoft Defender Elevation of Privilege Vulnerabilityvendor-advisorypatch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091government-resource
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