CVE-2026-56155

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Jul 15, 2026

Description

Insufficient granularity of access control in Active Directory Federation Services (AD FS) allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-1220

Affected software

No affected versions have been published.

Timeline

Published: Jul 14, 2026
Last modified: Jul 15, 2026
Added to CISA KEV: Jul 14, 2026
NVD status: Analyzed

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