SB2026111156 - OS Command Injection in Fortinet products
Published: November 11, 2026
Security Bulletin ID
SB2026111156
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) OS Command Injection (CVE-ID: CVE-2026-126144)
CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote authenticated user to execute arbitrary code.
The vulnerability exists due to improper neutralization of special elements used in an os command ('os command injection') in webmail. An authenticated attacker can execute unauthorized code or commands via specifically crafted HTTP requests.
Remediation
Install update from vendor's website.