CVE-2025-32756
Published 2025-05-13 · Updated 2026-06-17 · Source psirt@fortinet.com
Summary
CVE-2025-32756 is a critical-severity (CVSS 9.8) vulnerability in Fortinet Multiple Products. CISA added it to the Known Exploited Vulnerabilities catalog on May 14, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 4, 2025. CISA does not currently list it as used in ransomware campaigns. Fortinet has 32 vulnerabilities in the KEV catalog, 14 of them linked to ransomware.
All 32 known-exploited Fortinet vulnerabilities →Description
A stack-based buffer overflow vulnerability [CWE-121] vulnerability in Fortinet FortiCamera 2.1.0 through 2.1.3, FortiCamera 2.0 all versions, FortiCamera 1.1 all versions, FortiMail 7.6.0 through 7.6.2, FortiMail 7.4.0 through 7.4.4, FortiMail 7.2.0 through 7.2.7, FortiMail 7.0.0 through 7.0.8, FortiNDR 7.6.0, FortiNDR 7.4.0 through 7.4.7, FortiNDR 7.2.0 through 7.2.4, FortiNDR 7.0.0 through 7.0.6, FortiRecorder 7.2.0 through 7.2.3, FortiRecorder 7.0.0 through 7.0.5, FortiRecorder 6.4.0 through 6.4.5, FortiVoice 7.2.0, FortiVoice 7.0.0 through 7.0.6, FortiVoice 6.4.0 through 6.4.10 allows a remote unauthenticated attacker to execute arbitrary code or commands via sending HTTP requests with specially crafted hash cookie.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Fortinet — Multiple Products
Name: Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability
Date added: 2025-05-14 · Due: 2025-06-04
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

