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CVE-2025-59719VulnerabilityPublished Updated

CVE-2025-59719: Fortinet FortiWeb · Improper Access Control

Affects Fortinet FortiWebSource CVE Database V5

0

Not known to be exploited · 29% EPSS · CVSS 9.1 Critical · patch available : patch Fortinet FortiWeb as a priority.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
29.2% chance of exploitation in 30 days – higher than 98% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
FortinetFortiWebAffected
  • >=7.6.0 <=7.6.4
  • >=7.4.0 <=7.4.9
  • =8.0.0
Fixed in–

CPE configurations (16)

  • cpe:2.3:a:fortinet:fortiweb:8.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortiweb:7.6.4:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortiweb:7.6.3:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortiweb:7.6.2:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortiweb:7.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:fortinet:fortiweb:7.6.0:*:*:*:*:*:*:*

AI-suggested

An official fix is available from Fortinet to remediate this vulnerability. Users should apply the vendor-provided patches or updates for FortiWeb versions 8.0.0, 7.6.0 through 7.6.4, and 7.4.0 through 7.4.9 as soon as possible to prevent exploitation.

Description

An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.

References

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