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Fortinet PSIRT AdvisoriesFG-IR-26-267

Authentication bypass by primary weakness

CriticalVendor CVSS 9.3 / 10 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

Summary

CVSSv3 Score:

9.3

An Authentication Bypass by Primary Weakness vulnerability [cwe-305] in FortiOS and FortiSASE ospf daemon may allow an unauthenticated attacker to broadcast LSA via specially crafted request

Revised on 2026-11-10 00:00:00

Products covered

  • FortiOS

  • FortiSASE

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 1

Updates

  1. Published by Fortinet

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.