Quick answers
- Is CVE-2026-126261 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-126261 being exploited in the wild.
- How severe is CVE-2026-126261?
- Critical severity, with a CVSS score of 9.8, published 10 November 2026.
- Which products and versions are affected?
- Fortinet FortiManager 7.2.0 through 7.2.8, 7.4.0 through 7.4.5, 7.6.0 through 7.6.7, 8.0.0.
- Is there a fix for CVE-2026-126261?
- Yes: fixed in FortiManager 7.2.9, 7.4.6, 7.6.8, 8.0.1 or above. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-126261 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-126261?
- Check whether you run Fortinet FortiManager 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: FortiManager 7.2.9, 7.4.6, 7.6.8, 8.0.1 or above
Technical details
An improper authorization vulnerability in the FGFM component allows unauthenticated attackers to execute code via crafted packets sent to the FGFM port, bypassing authentication checks before the registration password is verified. The attack requires network access to the FGFM port and affects multiple FortiManager versions from 7.2.0 through 8.0.0. A patch is available for all affected versions.
Affected products
- Fortinet FortiManager 7.2.0 through 7.2.8, 7.4.0 through 7.4.5, 7.6.0 through 7.6.7, 8.0.0
Timeline
- 2026-11-10: disclosed