SB2026011363 - Unauthenticated remote command injection in FortiSIEM
Published: January 13, 2026 Updated: January 16, 2026
Security Bulletin ID
SB2026011363
Severity
Critical
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 security vulnerability.
1) OS command injection (CVE-ID: CVE-2025-64155)
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in phMonitor. A remote unauthenticated attacker can send specially crafted packets to port 7900/TCP and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.