CVE-2023-39362: Authenticated command injection in SNMP options of a Device

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 85.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-09-05 · updated 2026-06-17
Weakness: CWE-78

Description

Cacti is an open source operational monitoring and fault management framework. In Cacti 1.2.24, under certain conditions, an authenticated privileged user, can use a malicious string in the SNMP options of a Device, performing command injection and obtaining remote code execution on the underlying server. The `lib/snmp.php` file has a set of functions, with similar behavior, that accept in input some variables and place them into an `exec` call without a proper escape or validation. This issue has been addressed in version 1.2.25. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

cacti: before 1.2.25 — fixed in 1.2.25
Fedoraproject Fedora: 37, 38

How to fix

Upgrade to a fixed version: cacti 1.2.25. Check the vendor advisory for mitigations.

References

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