CVE-2026-59118

CriticalCVSS 9.3/10Last modified Oct 24, 2026

Description

Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.

Metrics

CVSS 3.1 9.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-285

Affected software

No affected versions have been published.

Timeline

Published
Aug 7, 2026
Last modified
Oct 24, 2026
NVD status
Modified

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CVE-2026-59118: Critical severity, CVSS 9.3 | Vulnix