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Vulnerability record · CVE-2026-126253 · published 11 November 2026

CVE-2026-126253: A authentication bypass by primary weakness vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6…

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

9.3 CVSS 3.1 Critical CWE-305 · CWE-305 Received
9.3CVSS 3.1 base score
-EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
11 Nov 2026Last modified by NVD

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:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H

References

LinkTags
https://fortiguard.fortinet.com/psirt/FG-IR-26-267

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Source: NIST National Vulnerability Database (record CVE-2026-126253), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.