Critical CVSS 9.3 EPSS 0.04634 2025-06 archive

Executive Summary

Ai command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Overview

9.3
CVSS CRITICAL
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Information Disclosure
Released Jun 10 2025
Last Updated Jun 10 2025
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.04634 — 0.90524 percentile

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Changed
Temporal Score: 8.1

EPSS Score

0.04634
probability of exploitation in the next 30 days
0.90524 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

1 affected product
Product KB Article Severity Impact Restart Required
Microsoft 365 Copilot Critical Information Disclosure Unknown

Patches

1 patch
Article Type Restart
Unknown

Known Exploits

Acknowledgments

Aim Labs (Part of Aim Security), Estevam Arantes with Microsoft