Is CVE-2026-126249 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-126249 being exploited in the wild.

How severe is CVE-2026-126249?

High severity, with a CVSS score of 7.2, published 11 November 2026.

Which products and versions are affected?

Fortinet FortiAuthenticator 8.0.0 through 8.0.3, 6.6.0 through 6.6.10.

Is there a fix for CVE-2026-126249?

Yes: fixed in FortiAuthenticator 8.0.4 or above, 6.6.11 or above. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-126249 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-126249?

Check whether you run Fortinet FortiAuthenticator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-126249: Fortinet FortiAuthenticator privilege escalation in GUI

CVE-2026-126249 · Severity: high · CVSS 7.2 · Published 2026-11-11

FortiAuthenticator is an authentication and identity management system that protects corporate access to networks and applications. An improper privilege management flaw allows authenticated users to escalate their privileges within the system, potentially gaining administrator access and compromising security controls for the entire organization.

Technologies: Fortinet FortiAuthenticator. Vendors: Fortinet.

Quick answers

Is CVE-2026-126249 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-126249 being exploited in the wild.
How severe is CVE-2026-126249?: High severity, with a CVSS score of 7.2, published 11 November 2026.
Which products and versions are affected?: Fortinet FortiAuthenticator 8.0.0 through 8.0.3, 6.6.0 through 6.6.10.
Is there a fix for CVE-2026-126249?: Yes: fixed in FortiAuthenticator 8.0.4 or above, 6.6.11 or above. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-126249 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-126249?: Check whether you run Fortinet FortiAuthenticator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: FortiAuthenticator 8.0.4 or above, 6.6.11 or above

Technical details

An improper privilege management vulnerability (CWE-269) in the FortiAuthenticator GUI allows authenticated attackers to escalate privileges. The vulnerability affects versions 8.0.0–8.0.3 and 6.6.0–6.6.10, and requires an authenticated attacker to exploit it; no user interaction or additional attack vectors are needed beyond authentication.

Affected products

Fortinet FortiAuthenticator 8.0.0 through 8.0.3, 6.6.0 through 6.6.10

Timeline

2026-11-10: disclosed

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-263

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