Critical CVSS 10 EPSS 0.01164 2026-05 archive

Executive Summary

Improper access control in Azure AI Foundry M365 published agents allows an unauthorized attacker to elevate privileges over a network.

Overview

10
CVSS CRITICAL
Critical
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
Category Elevation of Privilege
Released May 12 2026
Last Updated May 12 2026
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.01164 — 0.63138 percentile
NVD CVSS 10 CRITICAL — differs from MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Changed
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 7.5

EPSS Score

0.01164
probability of exploitation in the next 30 days
0.63138 percentile - updated 2026-06-21
View on FIRST.org

Known Exploits

Acknowledgments

Anonymous