VULNERABILITY INTELLIGENCE

CVE-2026-21520

CVSS score7.5 HIGH
EPSS probability1.53%
CISA KEVNot currently listed
Published2026-01-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

Exposure of Sensitive Information to an Unauthorized Actor in Copilot Studio allows a unauthenticated attacker to view sensitive information through network attack vector

Weakness classification

  • secure@microsoft.com: CWE-77

Primary references