CVE-2026-126232: Fortinet FortiAnalyzer improper certificate validation in RADIUS

CVE-2026-126232 · Severity: high · CVSS 7.5 · Published 2026-11-11

FortiAnalyzer and FortiManager are centralized management and log analysis systems used by enterprises to monitor security and network devices. An improper certificate validation flaw in their RADIUS authentication allows an attacker on the network to impersonate a RADIUS server, potentially intercepting or redirecting authentication traffic to gain unauthorized access to managed systems.

Technologies: Fortinet Fortianalyzer, Fortinet Fortianalyzer Cloud, Fortinet FortiManager, Fortinet FortiManager Cloud, Fortinet FortiSASE-Sovereign. Vendors: Fortinet.

Quick answers

Is CVE-2026-126232 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-126232 being exploited in the wild.
How severe is CVE-2026-126232?
High severity, with a CVSS score of 7.5, published 11 November 2026.
Which products and versions are affected?
Fortinet Fortianalyzer 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2 all versions; Fortinet Fortianalyzer Cloud 8.0.1, 7.6.0-7.6.7, 7.4.1-7.4.11, 7.2 all versions; Fortinet FortiManager 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2 all versions; Fortinet FortiManager Cloud 8.0.1, 7.6.0-7.6.7, 7.4.1-7.4.11, 7.2 all versions; and 1 more.
Is there a fix for CVE-2026-126232?
Yes: fixed in FortiAnalyzer 8.0.2 or above, 7.6.8 or above, 7.4.12 or above; FortiAnalyzer Cloud 8.0.2 or above, 7.6.8 or above, 7.4.12 or above; FortiManager 8.0.2 or above, 7.6.8 or above, 7.4.12 or above; FortiManager Cloud 8.0.2 or above, 7.6.8 or above, 7.4.12 or above; FortiSASE Sovereign 26.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-126232 attacked?
It is attacked over the network or from the adjacent network, in a network appliance.
Am I affected by CVE-2026-126232?
Check whether you run Fortinet Fortianalyzer, Fortinet Fortianalyzer Cloud, Fortinet FortiManager or one of the others listed 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: FortiAnalyzer 8.0.2 or above, 7.6.8 or above, 7.4.12 or above; FortiAnalyzer Cloud 8.0.2 or above, 7.6.8 or above, 7.4.12 or above; FortiManager 8.0.2 or above, 7.6.8 or above, 7.4.12 or above; FortiManager Cloud 8.0.2 or above, 7.6.8 or above, 7.4.12 or above; FortiSASE Sovereign 26.2

Technical details

An improper certificate validation vulnerability (CWE-295) in the RADIUS protocol implementation fails to validate RADIUS server certificates, allowing a man-in-the-middle attacker to spoof a rogue RADIUS server. The vulnerability affects the RADIUS authentication component and requires network adjacency to the target. An attacker can intercept RADIUS authentication exchanges and impersonate the legitimate server.

Affected products

  • Fortinet FortiAnalyzer 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2 all versions
  • Fortinet FortiAnalyzer Cloud 8.0.1, 7.6.0-7.6.7, 7.4.1-7.4.11, 7.2 all versions
  • Fortinet FortiManager 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2 all versions
  • Fortinet FortiManager Cloud 8.0.1, 7.6.0-7.6.7, 7.4.1-7.4.11, 7.2 all versions
  • Fortinet FortiSASE Sovereign 26.2 all versions, 25.4 all versions, 25.3 all versions, 25 all versions

Timeline

  • 2026-11-10: disclosed

References

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