# CVE-2026-126169: CVE-2026-126169

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

A improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.2, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2 all versions may allow an authenticated remote attacker with domain admin or admin privileges to delete users of other tenant domains on a paired FortiAuthenticator, execute arbitrary code as root or arbitrary CLI commands, and read or write arbitrary files as root via crafted HTTP requests to the administrative interface.

## Remediation

- fix: Upgrade to upcoming  FortiMail version 8.0.3 or above
Upgrade to FortiMail version 7.6.7 or above
Upgrade to FortiMail version 7.4.9 or above (source: CNA: fortinet)

## Affected products and versions

- Fortinet / FortiMail: ≥ 8.0.0; ≤ 8.0.2 (affected, semver); ≥ 7.6.0; ≤ 7.6.6 (affected, semver); ≥ 7.4.0; ≤ 7.4.8 (affected, semver); ≥ 7.2.0; ≤ 7.2.9 (affected, semver). Source: CNA: fortinet

## Severity and prioritization

- CVSS 3.1: 7.2 (high); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C; source: CNA: fortinet

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-88

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

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

## Provenance

- CNA: fortinet: https://www.cve.org/CVERecord?id=CVE-2026-126169; retrieved 2026-11-11; source updated 2026-11-11

Revision: a5d8c589cb56252fc26262710611fa9651a613d38e108b45d4a05d485acc0d36

Canonical: https://y2.dev/cve/CVE-2026-126169

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