Stack-based buffer overflow in FortiOS - CVE-2025-58413
Published: November 18, 2025
Vulnerability identifier: #VU118605
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-58413
CWE-ID: CWE-121
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Fortinet, Inc
Affected software:
FortiOS
FortiOS
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the in FortiOS CAPWAP daemon. A remote unauthenticated attacker on the local network can send specially crafted packets to the device, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Note that in the default configuration, the attacker must be in control
of an authorized FortiAP for the attack to succeed and have access to
the same local IP subnet.
How to mitigate CVE-2025-58413
Install updates from vendor's website.