ACTIVELY EXPLOITED

CVE-2025-32756: Fortinet Multiple Products Stack-Based Buffer Overflow Vulnerability

Facts
VendorFortinet
ProductMultiple Products
Actively exploitedYes
Added to CISA KEV14 May 2025
CISA federal deadline4 Jun 2025
Weakness (CWE)CWE-124

Required action (CISA's text)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description (NVD)

Fortinet FortiFone, FortiVoice, FortiNDR and FortiMail contain a stack-based overflow vulnerability that may allow a remote unauthenticated attacker to execute arbitrary code or commands via crafted HTTP requests.

SOURCES

Other Fortinet flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.