Description
An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.
References (2)
Core 2
Core References
Various Sources
https://fortiguard.fortinet.com/psirt/FG-IR-25-384
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-975644.html
Scores
CVSS v3
4.2
EPSS
0.0002
EPSS Percentile
6.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-940
Status
published
Products (4)
Fortinet/FortiOS
7.0.0 - 7.0.19
Fortinet/FortiOS
7.2.0 - 7.2.13
Fortinet/FortiOS
7.4.0 - 7.4.9
Fortinet/FortiOS
7.6.0 - 7.6.4
Published
Feb 10, 2026
Tracked Since
Feb 18, 2026