CVE-2026-126228: Fortinet FortiManager and FortiAnalyzer out-of-bounds write in dmworker

CVE-2026-126228 · Severity: high · CVSS 7.2 · Published 2026-11-11

FortiManager and FortiAnalyzer are management and log collection platforms used to centrally administer and monitor enterprise security infrastructure. An out-of-bounds write vulnerability in the dmworker component allows authenticated administrators to execute arbitrary code on these systems via a specially crafted request, potentially compromising the entire managed network's configuration and security logs.

Technologies: Fortinet Fortianalyzer, Fortinet Fortianalyzer Cloud, Fortinet FortiManager, Fortinet FortiManager Cloud. Vendors: Fortinet.

Quick answers

Is CVE-2026-126228 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-126228 being exploited in the wild.
How severe is CVE-2026-126228?
High severity, with a CVSS score of 7.2, published 11 November 2026.
Which products and versions are affected?
Fortinet Fortianalyzer 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11, 7.2.4 through 7.2.12; Fortinet Fortianalyzer Cloud 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.1 through 7.4.11, 7.2.4 through 7.2.12; Fortinet FortiManager 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11, 7.2.4 through 7.2.12; Fortinet FortiManager Cloud 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.1 through 7.4.11, 7.2.4 through 7.2.12.
Is there a fix for CVE-2026-126228?
Yes: fixed in FortiManager 8.0.2, 7.6.8, 7.4.12, 7.2.13; FortiManager Cloud 8.0.2, 7.6.8, 7.4.12, 7.2.13; FortiAnalyzer 8.0.2, 7.6.8, 7.4.12, 7.2.13; FortiAnalyzer Cloud 8.0.2, 7.6.8, 7.4.12, 7.2.13. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-126228 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-126228?
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: FortiManager 8.0.2, 7.6.8, 7.4.12, 7.2.13; FortiManager Cloud 8.0.2, 7.6.8, 7.4.12, 7.2.13; FortiAnalyzer 8.0.2, 7.6.8, 7.4.12, 7.2.13; FortiAnalyzer Cloud 8.0.2, 7.6.8, 7.4.12, 7.2.13

Technical details

An out-of-bounds write vulnerability (CWE-787) in the dmworker component of FortiManager and FortiAnalyzer allows authenticated remote attackers with admin privileges to execute unauthorized code or commands. The vulnerability is triggered via a specially crafted API request and requires existing administrative access to exploit. Fixes are available in patched versions across all affected product lines.

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, 7.2.4 through 7.2.12
  • Fortinet FortiManager Cloud 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.1 through 7.4.11, 7.2.4 through 7.2.12
  • Fortinet FortiAnalyzer 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11, 7.2.4 through 7.2.12
  • Fortinet FortiAnalyzer Cloud 8.0.0 through 8.0.1, 7.6.0 through 7.6.7, 7.4.1 through 7.4.11, 7.2.4 through 7.2.12

Timeline

  • 2026-11-10: disclosed
  • 2026-11-10: advisory: PSIRT FG-IR-26-243 published

References

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