CVE-2026-41090 | THREATINT

Description

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.

PUBLISHED Reserved 2026-04-16 | Published 2026-05-22 | Updated 2026-06-05 | Assigner microsoft

CRITICAL: 9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

Problem types

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

Product status

affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41090 (Microsoft Copilot Tampering Vulnerability) vendor-advisory patch

cve.org (CVE-2026-41090)

nvd.nist.gov (CVE-2026-41090)

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