CVE-2025-66399
HighCVSS 8.8Exploitation Probability (EPSS)
Very high risk96th percentile - higher than 96% of all known CVEs
Summary
Cacti prior to 1.2.29 has an input-validation flaw in SNMP device configuration. An authenticated user can supply crafted SNMP community strings containing control characters (including newlines) that are accepted, stored verbatim, and later embedded into backend SNMP operations, potentially leading to unintended command execution with Cacti process privileges in certain environments.
Risk Assessment
This could allow an authenticated user to execute commands in the context of the Cacti process, potentially leading to privilege escalation or further system compromise. The risk applies to environments where SNMP tooling interprets newlines as command separators.
Recommendation
Update Cacti to version 1.2.29 or later. Review SNMP configurations for unusual community strings.
Other vulnerabilities in Cacti
See all- CVE-2016-10700High
In auth_login.php in Cacti before 1.0.0, remote authenticated users can bypass intended access restrictions by logging in as a user not in the Cacti database, because the guest user is not considered.
- CVE-2014-4000High
Cacti before 1.0.0 allows remote authenticated users to conduct PHP object injection attacks and execute arbitrary PHP code via a crafted serialized object.
- CVE-2017-16660High
Cacti version 1.1.27 allows remote authenticated administrators to conduct Remote Code Execution attacks by placing the Log Path under the web root and then making a remote_agent.php request containing PHP code in a Client-ip header.
- CVE-2017-16641High
In Cacti 1.1.27, the lib/rrd.php file allows remote authenticated administrators to execute arbitrary OS commands via the path_rrdtool parameter in an action=save request to settings.php.
- CVE-2017-1000031High
CVE-2017-1000031 is an SQL injection vulnerability in graph_templates_inputs.php in Cacti 0.8.8b that allows remote attackers to execute arbitrary SQL commands via the graph_template_input_id and graph_template_id parameters.
- CVE-2016-2313High
The auth_login.php file in Cacti before version 0.8.8g allows remote authenticated users who use web authentication to bypass intended access restrictions by logging in as a user not in the Cacti database.
- CVE-2016-3659High
SQL injection vulnerability in graph_view.php in Cacti 0.8.8.g allows remote authenticated users to execute arbitrary SQL commands via the host_group_data parameter.
- CVE-2015-4454High
SQL injection vulnerability in the get_hash_graph_template function in lib/functions.php in Cacti before version 0.8.8d allows remote attackers to execute arbitrary SQL commands via the graph_template_id parameter to graph_templates.php.
- CVE-2015-4342High
SQL injection vulnerability in Cacti before version 0.8.8d allows remote attackers to execute arbitrary SQL commands via unspecified vectors involving a cdef id.
- CVE-2014-2709High
The lib/rrd.php file in Cacti versions 0.8.7g, 0.8.8b, and earlier contains a vulnerability that allows remote attackers to execute arbitrary commands via shell metacharacters in unspecified parameters.
Original NVD description (English source)
Cacti is an open source performance and fault management framework. Prior to 1.2.29, there is an input-validation flaw in the SNMP device configuration functionality. An authenticated Cacti user can supply crafted SNMP community strings containing control characters (including newlines) that are accepted, stored verbatim in the database, and later embedded into backend SNMP operations. In environments where downstream SNMP tooling or wrappers interpret newline-separated tokens as command boundaries, this can lead to unintended command execution with the privileges of the Cacti process. This vulnerability is fixed in 1.2.29.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS