CVE-2026-85885

CRITICALCVSS 9.9

Description

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network.

Timeline

Published:September 17th, 2026 11:18 PM

Last modified:September 19th, 2026 4:18 AM

CVSS Scoring

CVSS v3: 9.9 (CRITICAL)

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

Weaknesses (CWE)

CWE-77

References & Reports

Advisories, patches, and third-party reports

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885

Source: NIST NVD · Data may lag official sources by up to one minute