CVE-2026-126148 PUBLISHED

Assigner: fortinet
Reserved: 10.11.2026 Published: 11.11.2026 Updated: 11.11.2026

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted HA join-request packets.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:R
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Fortinet
Product	FortiMail
Versions	Default: unaffected affected from 8.0.0 to 8.0.1 (incl.) affected from 7.6.0 to 7.6.6 (incl.)

Solutions

Upgrade to FortiMail version 8.0.2 or above Upgrade to FortiMail version 7.6.7 or above

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-200

Problem Types

Execute unauthorized code or commands CWE