CVE-2026-126258

HighCVSS 7.5/10Last modified Nov 12, 2026

Description

A stack-based buffer overflow vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.7 may allow an unauthenticated attacker with wad port access to crash proxy or ZTNA sessions via crafted HTTP or HTTPS requests.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-121

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
Fortinet	FortiOS	8.0.0; 7.6.7

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-272

Timeline

Published: Nov 11, 2026
Last modified: Nov 12, 2026
NVD status: Awaiting Analysis

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