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CVE-2023-40718

nvd nist
Published: Oct 10, 2023Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

A interpretation conflict in Fortinet IPS Engine versions 7.321, 7.166 and 6.158 allows attacker to evade IPS features via crafted TCP packets.

Affected (3)

Fortinet
1 product
Fortios Ips Engine
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Fortios Ips Engine
Up to 7.312
Running on/withPlatform Versions
Fortinet
Fortios
From 7.2.0 to 7.2.4
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Fortios Ips Engine
Up to 7.165
Running on/withPlatform Versions
Fortinet
Fortios
From 7.0.0 to 7.0.12
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Fortios Ips Engine
Up to 6.158
Running on/withPlatform Versions
Fortinet
Fortios
From 6.4.0 to 6.4.13

Related CWEs

CWE-436
Interpretation Conflict
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.

References (2)

Source: psirt@fortinet.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.