Is CVE-2025-22251 in the CISA KEV catalog?

No. CVE-2025-22251 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-22251?

CVE-2025-22251 has a CVSS v3 base score of 3.1 (LOW).

What is the EPSS score for CVE-2025-22251?

CVE-2025-22251 has an EPSS score of 0.34% (25th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-22251?

Upgrade fortios to 7.4.6 or later.

CVE & CISA-KEV Catalog

CVE-2025-22251

LOW

3.1

CVSS v3

NVD

Description

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.

CWE-923

How to fix

Remediation Available

fortiosNVD

Affected:>= 6.4.0, < 7.4.6Fixed in:7.4.6CVE-2025-22251derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

0.34%probability of exploitation in 30 days

25thpercentile

Low risk: more likely to be exploited than 25% of all known CVEs.

References

Vendor Advisory1

fortiguard.fortinet.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-07-25.