Improper verification of cryptographic signature in Copilot Studio allows an unauthorized attacker to elevate privileges over a network.
History

Thu, 03 Sep 2026 23:15:00 +0000

Type Values Removed Values Added
Description Improper verification of cryptographic signature in Copilot Studio allows an unauthorized attacker to elevate privileges over a network.
Title Copilot Studio Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft copilot Studio
Weaknesses CWE-347
CPEs cpe:2.3:a:microsoft:copilot_studio:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft copilot Studio
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N/E:U/RL:O/RC:C'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-03T22:59:13.804Z

Reserved: 2026-08-25T18:37:59.830Z

Link: CVE-2026-80098

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-03T23:17:20.350

Modified: 2026-09-03T23:17:20.350

Link: CVE-2026-80098

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-04T00:30:12Z