Microsoft says an actively exploited flaw in Entra ID, its cloud identity service used by Microsoft 365 and Azure customers, has already been fixed on the service side. The bug, CVE-2026-69836, is a maximum-severity deserialization vulnerability that allowed an unauthenticated attacker to execute code over the network in low-complexity attacks. Microsoft says no customer action is required because the cloud service was fully mitigated before public disclosure.
Why it matters: Entra ID is a central login and access-control service for many organizations, so an exploited remote-code-execution flaw in it is significant even if Microsoft has already patched it. Customers should review Microsoft’s advisory and monitor for any related signs of compromise, but there is no software update they need to install themselves.
Sergiu Gatlan
2026.08.21
100% relevant
This article establishes a distinct new event: Microsoft’s disclosure of active exploitation of CVE-2026-69836 in Entra ID, which is not the same underlying incident as the existing Microsoft cloud, Entra, or Patch Tuesday stories listed.
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