Medium severity5.5NVD Advisory· Published Aug 11, 2026· Updated Aug 17, 2026
CVE-2026-54123
CVE-2026-54123
Description
Exposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally.
Affected products
2(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:macos:*:*range: >=101.0.0,<101.26042.0020
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54123nvdVendor Advisory
News mentions
2- Patch Tuesday - August 2026Rapid7 Blog · Aug 11, 2026
- Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-DaysCyber Security News · Aug 11, 2026