Quick answers
- Is CVE-2026-126218 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-126218 being exploited in the wild.
- How severe is CVE-2026-126218?
- High severity, with a CVSS score of 8.2, published 11 November 2026.
- Which products and versions are affected?
- Fortinet FortiManager 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11.
- Is there a fix for CVE-2026-126218?
- Yes: fixed in FortiManager 8.0.2 or above, 7.6.8 or above, 7.4.12 or above. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-126218 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-126218?
- 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 8.0.2 or above, 7.6.8 or above, 7.4.12 or above
Technical details
An authorization bypass through user-controlled key vulnerability (CWE-639) in the FortiManager GUI allows an authenticated administrator to escalate privileges to root via specially crafted HTTP requests. The flaw requires existing admin credentials and network access to the FortiManager interface. A successful exploit grants an attacker unrestricted administrative control over the entire management platform.
Affected products
- Fortinet FortiManager 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11
Timeline
- 2026-11-10: disclosed