Ai command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32711
https://www.securityweek.com/echoleak-ai-attack-enabled-theft-of-sensitive-data-via-microsoft-365-copilot/
https://www.darkreading.com/application-security/researchers-detail-zero-click-copilot-exploit-echoleak
https://www.bleepingcomputer.com/news/security/zero-click-ai-data-leak-flaw-uncovered-in-microsoft-365-copilot/
Source: Mitre, NVD
Published: 2025-06-11
Updated: 2025-06-12
Named Vulnerability: EchoLeak
Base Score: 8.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N
Severity: High
Base Score: 9.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Severity: Critical
EPSS: 0.00076