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CVE-2026-69836 is a critical remote code execution vulnerability in Microsoft Entra ID, Microsoft’s cloud-based identity and access management service. The flaw is caused by deserialization of untrusted data in backend service components, allowing specially crafted serialized input to be processed without sufficient validation. An unauthenticated attacker can exploit the issue remotely over the network without user interaction, resulting in arbitrary code execution within the affected service context. The vulnerability has been reported as exploited in the wild and carries a CVSS v3.1 vector of AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
27 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability in Entra ID.
A maximum-severity remote code execution vulnerability in Microsoft Entra ID caused by deserialization of untrusted data, affecting Microsoft's cloud-based identity and access management service.
A critical unauthenticated remote code execution vulnerability in Microsoft Entra ID caused by deserialization of untrusted data, allowing arbitrary code execution against the cloud identity service.
A 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.