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CVE-2026-26164

7.5 high SSVC exploitation: none Modified
NVD · CVE.org

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information 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 7.5 · microsoftNVD modified 2026-10-26 20:10

Affected (CPE criteria) 1

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

References 1