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TI-2025-18914 Aliases CVE-2025-25252GHSA-8vxf-42v3-rc9p

Insufficient session expiration in Fortinet FortiOS

Priority LOW 29CWE-613Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-613.

Summary

An Insufficient Session Expiration vulnerability [CWE-613] in FortiOS SSL VPN 7.6.0 through 7.6.2, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, 7.0.0 through 7.0.16, 6.4 all versions may allow a remote attacker (e.g. a former admin whose account was removed and whose session was terminated) in possession of the SAML record of a user session to access or re-open that session via re-use of SAML record.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0034 27th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FortinetFortiOS7.6.0 – 7.6.2; 7.4.0 – 7.4.6; 7.2.0 – 7.2.10; 7.0.0 – 7.0.16; 6.4.0 – 6.4.16—No fix listedCNA
  • FortiOS VendorFortinet Affected 7.6.0 – 7.6.2; 7.4.0 – 7.4.6; 7.2.0 – 7.2.10; 7.0.0 – 7.0.16; 6.4.0 – 6.4.16 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*6.4.0 to before 7.0.17; 7.2.0 to before 7.2.11; 7.4.0 to before 7.4.7; 7.6.0 to before 7.6.3VulnerableFortinet
  • cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions 6.4.0 to before 7.0.17; 7.2.0 to before 7.2.11; 7.4.0 to before 7.4.7; 7.6.0 to before 7.6.3 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-25252
  2. 2026-10-03 Alias added: GHSA-8vxf-42v3-rc9p

References

Advisory 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-36904 Authentication bypass in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-15234 A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through… KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-14448 Out-of-bounds write in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-12585 Heap-based buffer overflow in Fortinet FortiOS-6K7K KEVCVSS 3.1CRITICAL 9.8
See all 276 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences