Improper restriction of communication channel to intended endpoints in FortiOS - CVE-2025-22251

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Main Vulnerability Database Vulnerabilities #VU111047

Improper restriction of communication channel to intended endpoints in FortiOS - CVE-2025-22251

Published: June 11, 2025


Vulnerability identifier: #VU111047
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-22251
CWE-ID: CWE-923
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vendor: Fortinet, Inc
Affected software:
FortiOS

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The vulnerability exists due to improper restriction of communication channel to intended endpoints in FGSP. An unauthenticated attacker can inject unauthorized sessions via crafted FGSP session synchronization packets.


How to mitigate CVE-2025-22251

Install update from vendor's website.

Sources