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CVE-2026-69836 is an unsafe deserialization vulnerability in the Microsoft-hosted Entra ID identity and access management service, formerly Azure Active Directory. Processing attacker-controlled serialized data can allow an unauthenticated attacker to execute arbitrary code over a network without user interaction. The vulnerable component, endpoint, serialization format, and exploit chain have not been publicly identified. Microsoft applied a server-side fix. Initial claims of active exploitation were subsequently retracted, and the vulnerability's briefly added CISA Known Exploited Vulnerabilities entry was removed.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
149 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Microsoft Entra vulnerability used to illustrate the evolution and withdrawal of Known Exploited Vulnerability metadata and the importance of retaining provenance.
A critical unauthenticated network RCE vulnerability, categorized as CWE-502 (deserialization of untrusted data), in the server-side Microsoft Entra ID identity service. Its potential significance derives from Entra ID's role as a cloud identity trust root for Microsoft 365, Azure, and federated downstream applications. The article explicitly cautions that the affected deserializer, endpoint, object format, and gadget chain were not publicly disclosed.
Critical remote code execution vulnerability in Microsoft Entra ID caused by insecure deserialization of untrusted data; unauthenticated exploitation was possible with no user interaction.
A maximum-severity unauthenticated remote code execution vulnerability in Microsoft Entra ID caused by deserialization of untrusted data.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.