CVE-2026-56155
גבוהה 7.8 מנוצלת בשטח (KEV)
ניצול פעיל מאומת — קטלוג CISA KEV
- שם
- Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
- נוסף לקטלוג
- יעד טיפול (פדרלי)
- פעולה נדרשת
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
תיאור (מקור, אנגלית)
Insufficient granularity of access control in Active Directory Federation Services (AD FS) allows an authorized attacker to elevate privileges locally.
מדדים
- CVSS 3.1
-
7.8 (HIGH)
מקור הציון: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — סבירות ניצול
- 2% (אחוזון 100) נכון ל-9/8/2026
- CWE
- CWE-1220
מוצרים מושפעים
microsoft: windows 10 1607; microsoft: windows 10 1809; microsoft: windows server 2012; microsoft: windows server 2016; microsoft: windows server 2019; microsoft: windows server 2022; microsoft: windows server 2025
קישורים
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56155 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-202… US Government Resource