CVE-2026-56155—Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability

PUBLISHEDvulnerability record
2026-07-14 · last modified July 15, 2026

Metadata

CVE ID：
CVE-2026-56155
项目：
Microsoft
产品：
Active Directory Federation Services
添加日期：
2026-07-14
到期日：
2026-07-28
最后更新：
July 15, 2026

漏洞名称

Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability

描述

Microsoft Active Directory Federation Services contains an insufficient granularity of access control vulnerability that allows an authorized attacker to elevate privileges locally.

已知用于勒索软件活动吗？

勒索软件状态：
Unknown

采集行动

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.

其他说明

  • https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-56155
  • BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
  • Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
  • https://nvd.nist.gov/vuln/detail/CVE-2026-56155

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