FortiOS
CVE-2025-24477: Heap-based buffer overflow in FortiOS
A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2.4 through 7.2.12 allows an attacker to escalate its privileges via a specially crafted CLI command
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 4
EPSS0.22%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiOS 7.6.0 to 7.6.2 | 7.6.3 or later |
| FortiOS 7.4.0 to 7.4.7 | 7.4.8 or later |
| FortiOS 7.2.4 to 7.2.12 | 7.2.13 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2.4 through 7.2.12 allows an attacker to escalate its privileges via a specially crafted CLI command
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.