FortiOS Session Sync FGSP Exploit: CWE-923 (7.6.0,7.4.0-7.4.5,7.2,7.0,6.4)
CVE-2025-22251 Published on June 10, 2025
An improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in FortiOS 7.6.0, 7.4.0 through 7.4.5, 7.2 all versions, 7.0 all versions, 6.4 all versions may allow an unauthenticated attacker to inject unauthorized sessions via crafted FGSP session synchronization packets.
Vulnerability Analysis
Weakness Type
Improper Restriction of Communication Channel to Intended Endpoints
The software establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.
Products Associated with CVE-2025-22251
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Affected Versions
Fortinet FortiOS:- Version 7.6.0 is affected.
- Version 7.4.0, <= 7.4.5 is affected.
- Version 7.2.0, <= 7.2.11 is affected.
- Version 7.0.0, <= 7.0.17 is affected.
- Version 6.4.0, <= 6.4.16 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.