CVE-2022-40679

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-04-11 · updated 2026-06-17
Weakness: CWE-78

Description

An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in FortiADC 5.x all versions, 6.0 all versions, 6.1 all versions, 6.2.0 through 6.2.4, 7.0.0 through 7.0.3, 7.1.0; FortiDDoS 4.x all versions, 5.0 all versions, 5.1 all versions, 5.2 all versions, 5.3 all versions, 5.4 all versions, 5.5 all versions, 5.6 all versions and FortiDDoS-F 6.4.0, 6.3.0 through 6.3.3, 6.2.0 through 6.2.2, 6.1.0 through 6.1.4 may allow an authenticated attacker to execute unauthorized commands via specifically crafted arguments to existing commands.

Affected products

Fortinet FortiADC: from 5.0.0 before 6.2.5 — fixed in 6.2.5
Fortinet FortiDDoS: from 4.0.0 before 5.7.0 — fixed in 5.7.0
Fortinet FortiDDoS-F: from 6.1.0 before 6.1.5; from 6.2.0 before 6.2.3; from 6.3.0 before 6.3.4; 6.4.0 — fixed in 6.1.5, 6.2.3, 6.3.4

How to fix

Upgrade to a fixed version: Fortinet FortiADC 6.2.5; Fortinet FortiDDoS 5.7.0; Fortinet FortiDDoS-F 6.1.5, 6.2.3, 6.3.4. Check the vendor advisory for mitigations.

References

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