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CVE-2026-126183VulnerabilityPublished

A authorization bypass through user-controlled key vulnerability in Fortinet FortiManager 8.0.0 through 8.0.1

Source GCVE Database

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Authoritative record:CVE-2026-126183· High 8.7

Public exploit available · CVSS 8.7 High · patch available : patch FortiManager as a priority.

Data as of 12 Nov 2026, 02:48 UTC

CVSS 3.1 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (fortinet)CVSS 3.18.7
Patch
Available
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H/E:P/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  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), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
FortinetFortiManagerAffected
  • >=8.0.0 <=8.0.1
  • >=7.6.0 <=7.6.7
  • >=7.4.0 <=7.4.11
  • >=7.2.0 <=7.2.12
Fixed in–
FortinetFortiManager CloudAffected
  • >=7.6.0 <=7.6.7
  • >=7.4.1 <=7.4.11
  • >=7.2.1 <=7.2.12
  • =8.0.1
Fixed in–

AI-suggested

In the meantime, restrict access to FortiManager interfaces to trusted administrators and networks to reduce risk.

Description

CVE-2026-126183 is an authorization bypass vulnerability in Fortinet FortiManager versions 7.2.0 through 8.0.1 and corresponding FortiManager Cloud versions. It allows an authenticated attacker to execute commands beyond their expected permissions by sending specially crafted HTTP requests. The vulnerability affects multiple FortiManager and FortiManager Cloud releases across several major versions.

References

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