# CVE-2026-126230: Fortinet FortiAnalyzer format string vulnerability

Source: https://junglewise.ai/threats/cve-2026-126230-a-use-of-externally-controlled-format-string-vulnerability-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-11. Updated: 2026-11-11  
License: CC BY 4.0 with a link back

CVE-2026-126230 · Severity: high · CVSS 7.2 · Published 2026-11-11

Fortinet FortiAnalyzer and FortiManager are centralized management and logging platforms for enterprise security appliances. A format string flaw allows authenticated administrators to execute arbitrary code or commands or crash the system through malicious requests. This could allow a rogue admin to take full control of the management infrastructure or disable logging and monitoring across all protected networks.

Technologies: [Fortinet Fortianalyzer](https://junglewise.ai/threats/technologies/fortianalyzer), [Fortinet Fortianalyzer Cloud](https://junglewise.ai/threats/technologies/fortianalyzer-cloud), [Fortinet FortiManager](https://junglewise.ai/threats/technologies/fortimanager), [Fortinet FortiManager Cloud](https://junglewise.ai/threats/technologies/fortimanager-cloud). Vendors: [Fortinet](https://junglewise.ai/threats/vendors/fortinet).

## Quick answers

**Is CVE-2026-126230 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-126230 being exploited in the wild.

**How severe is CVE-2026-126230?** High severity, with a CVSS score of 7.2, 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, 7.2.0-7.2.12; Fortinet Fortianalyzer Cloud 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.1-7.4.11, 7.2.1-7.2.12; Fortinet FortiManager 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2.0-7.2.12; Fortinet FortiManager Cloud 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.1-7.4.11, 7.2.1-7.2.12.

**Is there a fix for CVE-2026-126230?** Yes: fixed in 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; 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. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-126230 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-126230?** 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, 7.6.8, 7.4.12, 7.2.13; FortiAnalyzer Cloud 8.0.2, 7.6.8, 7.4.12, 7.2.13; 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

## Technical details

A format string vulnerability (CWE-134) in the API component allows an authenticated administrator to inject format string specifiers in requests, leading to information disclosure, memory corruption, or code execution. The vulnerability requires administrator-level authentication and a specially crafted request, but carries a CVSS score of 7.2 due to the potential for unauthorized code execution.

## Affected products

- Fortinet FortiAnalyzer 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2.0-7.2.12
- Fortinet FortiAnalyzer Cloud 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.1-7.4.11, 7.2.1-7.2.12
- Fortinet FortiManager 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.0-7.4.11, 7.2.0-7.2.12
- Fortinet FortiManager Cloud 8.0.0-8.0.1, 7.6.0-7.6.7, 7.4.1-7.4.11, 7.2.1-7.2.12

## Timeline

- 2026-11-10: disclosed: Advisory published by Fortinet PSIRT

## References

- [https://fortiguard.fortinet.com/psirt/FG-IR-26-245](https://fortiguard.fortinet.com/psirt/FG-IR-26-245)

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