CVE-2025-59272 CRITICAL

CVE-2025-59272: Copilot Information Disclosure Vulnerability

Vendor Microsoft

Product Microsoft 365 Copilot's Business Chat

Weakness CWE-77

Published October 9, 2025

Last update February 26, 2026

View on NVD All CVEs

CVSS base score

9.3/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to perform information disclosure locally.

Key dates

02Disclosure timeline

October 9, 2025 CVE published

February 26, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-59272 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/77.html

Related vulnerabilities

CVE-2025-59272: Copilot Information Disclosure Vulnerability

01Description

02Disclosure timeline

03References

04Related CVE