Command injection in Cacti - CVE-2025-66399
Published: December 2, 2025
Vulnerability identifier: #VU118996
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-66399
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary commands on the system.
The vulnerability exists due to insufficient input validation whenhandling newline characters. A remote user can supply crafted SNMP community strings containing control characters that are accepted, stored verbatim in the database, and later embedded into backend SNMP operations.
Affected software
Cacti
How to mitigate CVE-2025-66399
Install updates from vendor's website.
Cacti - update to 1.2.29