CVE-2026-126253
Received Received - Intake

Authentication Bypass in Fortinet FortiOS via LSA Request

Vulnerability report for CVE-2026-126253, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-11-11

Last updated on: 2026-11-11

Assigner: Fortinet, Inc.

Description

A authentication bypass by primary weakness vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4.0 through 7.4.12, FortiOS 7.2.0 through 7.2.13 may allow an unauthenticated attacker to broadcast LSA via specially crafted request

CVSS Scores

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Meta Information

Published
2026-11-11
Last Modified
2026-11-11
Generated
2026-11-12
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
Fortinet FortiOS From 8.0.0 (inc) to 8.0.1 (inc)
Fortinet FortiOS From 7.6.0 (inc) to 7.6.7 (inc)
Fortinet FortiOS From 7.4.0 (inc) to 7.4.12 (inc)
Fortinet FortiOS From 7.2.0 (inc) to 7.2.13 (inc)
Fortinet FortiOS From 7.0.1 (inc) to 7.0.19 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-305 The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.

Attack-Flow Graph

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