VulnerabilityBleeping Computer
10.0 — CRITICAL
Microsoft warns of max severity Entra ID flaw exploited in attacks
Microsoft has patched a maximum-severity vulnerability in the Entra ID identity and access management (IAM) platform that has been exploited in attacks. [...]
🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview
Microsoft has patched a maximum-severity vulnerability in the Entra ID identity and access management platform, allowing threat actors with no privileges to gain code execution in low-complexity attacks. The flaw was fully mitigated by Microsoft before it could be exploited.
⚙️Technical Details
CVEs
CVE-2026-69836CVE-2026-65816CVE-2026-69555CVE-2026-65801CVE-2026-65770
Affected Systems
Microsoft Entra IDAzure ArcExchange OnlineAzure Managed Instance for Apache Cassandra
Attack Vectors
NETWORK
💥Impact Assessment
Severity: CRITICAL
Who Is at Risk
Customers of Microsoft Entra ID and Azure Arc, including organizations with Microsoft 365, Azure, or Dynamics CRM Online subscriptions.
🛡️Recommended Actions
1Regularly update Microsoft Entra ID to the latest patch version
2Monitor Azure Arc for suspicious activity
3Implement additional security controls to prevent exploitation of CVE-2026-65801
📦Affected Products
Microsoft Entra IDAzure ArcExchange Online
🔐NVD Verified DataVERIFIED
CVE-2026-69836 ↗CVSS 10 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HWeaknesses
CWE-502
CVE-2026-65816 ↗CVSS 10 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HWeaknesses
CWE-706
CVE-2026-69555 ↗CVSS 10 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:NWeaknesses
CWE-863
CVE-2026-65801 ↗CVSS 10 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HWeaknesses
CWE-918
CVE-2026-65770 ↗CVSS 10 — CRITICAL
Attack Vector
NETWORK
Complexity
LOW
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HWeaknesses
CWE-88
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