TI-2023-13606 Aliases CVE-2023-29175 GHSA-4mcw-v943-57xw

Improper certificate validation in Fortinet FortiOS

LOW 21CWE-295Published 2023-06-13 · Updated 2026-01-14

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Spoofing
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-295.

Summary

An improper certificate validation vulnerability [CWE-295] in FortiOS 6.2 all versions, 6.4 all versions, 7.0.0 through 7.0.10, 7.2.0 and FortiProxy 1.2 all versions, 2.0 all versions, 7.0.0 through 7.0.9, 7.2.0 through 7.2.3 may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the vulnerable device and the remote FortiGuard's map server.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00192 8th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Fortinet	FortiOS	7.2.0; 7.0.0 – 7.0.10; 6.4.0 – 6.4.16; 6.2.0 – 6.2.17; 6.0.0 – 6.0.18	—	No fix listed	CNA
Fortinet	FortiProxy	7.2.0 – 7.2.3; 7.0.0 – 7.0.9; 2.0.0 – 2.0.14	—	No fix listed	CNA

FortiOS VendorFortinet Affected 7.2.0; 7.0.0 – 7.0.10; 6.4.0 – 6.4.16; 6.2.0 – 6.2.17; 6.0.0 – 6.0.18 Fixed in — No fix listed CNA
FortiProxy VendorFortinet Affected 7.2.0 – 7.2.3; 7.0.0 – 7.0.9; 2.0.0 – 2.0.14 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:fortinet:fortiproxy::::::::	1.2.0 – 1.2.13; 2.0.0 – 2.0.12; 7.0.0 – 7.0.9; 7.2.0 – 7.2.3	Vulnerable	Fortinet
cpe:2.3:o:fortinet:fortios::::::::	6.0.0 – 6.0.17; 6.2.0 – 6.2.15; 6.4.0 – 6.4.13; 7.0.0 to before 7.0.11	Vulnerable	Fortinet
cpe:2.3:o:fortinet:fortios:7.2.0:::::::*	7.2.0	Vulnerable	Fortinet

cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* Versions 1.2.0 – 1.2.13; 2.0.0 – 2.0.12; 7.0.0 – 7.0.9; 7.2.0 – 7.2.3 Vulnerable ·Fortinet
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions 6.0.0 – 6.0.17; 6.2.0 – 6.2.15; 6.4.0 – 6.4.13; 7.0.0 to before 7.0.11 Vulnerable ·Fortinet
cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:* Versions 7.2.0 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-29175
2026-10-03 Alias added: GHSA-4mcw-v943-57xw

References

Advisory 1

https://fortiguard.com/psirt/FG-IR-22-468

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