TI-2018-09614 Aliases CVE-2018-13376 GHSA-2vhw-3h86-29h4

An uninitialized memory buffer leak exists in Fortinet FortiOS 5.6.1 to 5.6.3, 5.4.6 to…

MEDIUM 43Published 2018-11-27 · Updated 2024-10-25

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

An uninitialized memory buffer leak exists in Fortinet FortiOS 5.6.1 to 5.6.3, 5.4.6 to 5.4.7, 5.2 all versions under web proxy's disclaimer response web pages, potentially causing sensitive data to be displayed in the HTTP response.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.02119 81st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
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	Fortinet FortiOS	FortiOS 5.6.1 to 5.6.3, 5.4.6 to 5.4.7, 5.2 all versions	—	No fix listed	CNA

Fortinet FortiOS VendorFortinet Affected FortiOS 5.6.1 to 5.6.3, 5.4.6 to 5.4.7, 5.2 all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:fortinet:fortios::::::::	up to 5.2.12; 5.4.6 – 5.4.7; 5.6.1 – 5.6.3	Vulnerable	Fortinet

cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions up to 5.2.12; 5.4.6 – 5.4.7; 5.6.1 – 5.6.3 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-13376
2026-10-03 Alias added: GHSA-2vhw-3h86-29h4

References

Exploit 1

https://herolab.usd.de/wp-content/uploads/sites/4/2018/12/usd20180031.txt

Advisory 1

https://fortiguard.com/advisory/FG-IR-18-325

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