An Improper Authentication vulnerability [CWE-287] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6,…

Description

An Improper Authentication vulnerability [CWE-287] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11, FortiWeb 7.2.0 through 7.2.12, FortiWeb 7.0.0 through 7.0.12 may allow a remote unauthenticated attacker to login into the Fortiweb GUI/CLI with a random username and password

Scores

EPSS (exploitation in 30 days)

0.75% · top 45% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

• CWE-287: Improper access control (opens in a new tab)All about CWE-287 and its CVEs

Affected products

• Fortinet · FortiWeb

  • affected 8.0.0 – ≤ 8.0.2
  • affected 7.6.0 – ≤ 7.6.6
  • affected 7.4.0 – ≤ 7.4.11
  • affected 7.2.0 – ≤ 7.2.12
  • affected 7.0.0 – ≤ 7.0.12

What to do

Solution: Upgrade to FortiWeb version 8.0.3 or above Upgrade to FortiWeb version 7.6.7 or above Upgrade to FortiWeb version 7.4.12 or above Upgrade to upcoming FortiWeb version 7.2.13 or above Upgrade to upcoming FortiWeb version 7.0.13 or above

References (1)

• https://fortiguard.fortinet.com/psirt/FG-IR-26-158 (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-26035](https://trackcve.app/badge/CVE-2026-26035.svg)](https://trackcve.app/cve/CVE-2026-26035)

Record last updated 13 Aug 2026, 03:55 UTC.