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.

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Advisories

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Fixes

Solution

Upgrade to FortiOS version 8.0.1 or above Upgrade to FortiOS version 7.6.8 or above


Workaround

No workaround given by the vendor.

History

Wed, 11 Nov 2026 21:45:00 +0000

Type Values Removed Values Added
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.
First Time appeared Fortinet
Fortinet fortios
Weaknesses CWE-121
CPEs cpe:2.3:o:fortinet:fortios:7.6.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:8.0.0:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortios
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-11-11T21:31:50.602Z

Reserved: 2026-11-10T20:10:09.146Z

Link: CVE-2026-126258

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.

Weaknesses