CVE-2026-56155
Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
⚠ KEV
Description
Microsoft Active Directory Federation Services contains an insufficient granularity of access control vulnerability that allows an authorized attacker to elevate privileges locally.
How to fix CVE-2026-56155
No package mapping is available — consult the references below for vendor-specific guidance.
Is CVE-2026-56155 being exploited?
Yes — CVE-2026-56155 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (0)
No package mapping in OSV.