CVE-2026-26133

Published Mar 16, 2026

Last updated 6 days ago

Overview

Description
AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Source
secure@microsoft.com
NVD status
Modified
Products
365_copilot, edge, excel, loop, onenote, outlook, power_bi, powerpoint, teams, word

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.1
Impact score
4.2
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Severity
HIGH

Weaknesses

secure@microsoft.com
CWE-77
nvd@nist.gov
CWE-77

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.