# CVE-2026-126168: Fortinet FortiMail argument injection in administrative interface

Source: https://junglewise.ai/threats/cve-2026-126168-a-improper-neutralization-of-argument-delimiters-in-a-command  
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-2026-126168 · Severity: high · CVSS 7.2 · Published 2026-11-11

FortiMail is an email security gateway that protects organizations from email-based threats. An authenticated attacker with admin privileges can exploit an argument injection flaw to execute arbitrary code as root, delete users on linked FortiAuthenticator systems, and access or modify files, potentially compromising the entire email security infrastructure and linked authentication systems.

Technologies: [Fortinet FortiMail](https://junglewise.ai/threats/technologies/fortimail). Vendors: [Fortinet](https://junglewise.ai/threats/vendors/fortinet).

## Quick answers

**Is CVE-2026-126168 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-126168 being exploited in the wild.

**How severe is CVE-2026-126168?** High severity, with a CVSS score of 7.2, published 11 November 2026.

**Which products and versions are affected?** Fortinet FortiMail 7.2 all versions, 7.4.0 through 7.4.8, 7.6.0 through 7.6.6, 8.0.0 through 8.0.2.

**Is there a fix for CVE-2026-126168?** Yes: fixed in FortiMail 7.4.9 and above, 7.6.7 and above, 8.0.3 and above; for 7.2 all versions, migrate to a fixed release. Until then: FortiMail Cloud customers have been automatically remediated as of October 5, 2026; restrict administrative access to trusted users only. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-126168 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-126168?** Check whether you run Fortinet FortiMail 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 FortiMail 7.4.9 and above, 7.6.7 and above, 8.0.3 and above; for 7.2 all versions, migrate to a fixed release

FortiMail Cloud customers have been automatically remediated as of October 5, 2026; restrict administrative access to trusted users only.

## Technical details

An improper neutralization of argument delimiters (CWE-88) in the FortiMail administrative GUI allows authenticated users with domain admin or admin privileges to inject arbitrary arguments into commands. The vulnerability affects versions 7.2 through 8.0.2 and is triggered via crafted HTTP requests to the administrative interface, enabling arbitrary code execution as root and unauthorized file access.

## Affected products

- Fortinet FortiMail 7.2 all versions, 7.4.0 through 7.4.8, 7.6.0 through 7.6.6, 8.0.0 through 8.0.2

## Timeline

- 2026-11-10: disclosed
- 2026-10-05: patched: FortiMail Cloud remediated

## References

- [https://fortiguard.fortinet.com/psirt/FG-IR-26-218](https://fortiguard.fortinet.com/psirt/FG-IR-26-218)

## Related threats

- [Fortinet FortiMail SQL injection](https://junglewise.ai/threats/cve-2026-126263-a-improper-neutralization-of-special-elements-used-in-an-sql)
- [Fortinet FortiMail argument injection in administrative interface](https://junglewise.ai/threats/cve-2026-126169-a-improper-neutralization-of-argument-delimiters-in-a-command)
- [Fortinet FortiMail command injection in admin GUI](https://junglewise.ai/threats/cve-2026-126167-a-improper-neutralization-of-special-elements-used-in-a-command)
- [Fortinet FortiMail argument injection in admin interface](https://junglewise.ai/threats/cve-2026-126166-a-improper-neutralization-of-argument-delimiters-in-a-command)
- [Fortinet FortiMail memory allocation DoS](https://junglewise.ai/threats/cve-2026-126165-a-memory-allocation-with-excessive-size-value-vulnerability-in)