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Fortinet PSIRT AdvisoriesFG-IR-26-181

GUI Denial of Service

MediumVendor CVSS 6.7 / 10 1 CVE Published Oct 13, 2026 at 7:00 AM UTC

Summary

CVSSv3 Score:

6.7

An Improper Locking vulnerability [CWE-667] in FortiOS may allow an unauthenticated attacker with network access to the device to cause a denial of service of the HTTPS management interface via crafted HTTP requests.

Revised on 2026-10-13 00:00:00

Products covered

  • FortiOS

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.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.