CVE-2026-80098
Critical
10.0 CVSS v3.1
- Published
- Sep 3, 2026
- Updated
- Sep 8, 2026
- Vendor
- Microsoft
- Affected versions
- See affected products
- Weakness
- CWE-347
Summary
Improper verification of cryptographic signature in Copilot Studio allows an unauthorized attacker to elevate privileges over a network.
Severity
Critical (10.0)CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
- Microsoft Copilot Studio
Exploitation status
Unknown
Technical details
Technical analysis has not been written for this record yet.
Mitigation & remediation
Follow the vendor advisory linked below for patches and workarounds.