VulnerabilityBleeping Computer
10.0 — CRITICAL
Microsoft patches max severity code execution, privilege escalation flaws
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 multiple maximum-severity vulnerabilities in its Entra ID, Azure Arc, and Exchange Online that allowed attackers to gain remote code execution and escalate privileges, with the first flaw tracked as CVE-2026-69836 allowing unauthorized attackers to execute code over a network.
⚙️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 365, Azure, or Dynamics CRM Online with authentication, policy enforcement, and protection across apps and resources
🛡️Recommended Actions
1Implement a web application firewall (WAF) to block unauthorized access to Microsoft Entra ID and Azure Arc.
2Regularly update and patch affected systems with the latest security patches.
3Monitor system logs for suspicious activity and implement intrusion detection and prevention systems.
📦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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