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CVE-2026-50517

9.9 critical SSVC exploitation: none Analyzed
NVD · CVE.org

Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 9.9 · microsoftNVD modified 2026-10-24 13:10

Affected (CPE criteria) 1

  • cpe:2.3:a:microsoft:365_copilot:-:*:*:*:*:*:*:*

References 1