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TI-2025-40836 Aliases CVE-2025-66399

SNMP Command Injection leads to RCE in Cacti

Priority HIGH 74CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.1085 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed cacti (Cacti): 1.2.29

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Cacticactibefore 1.2.291.2.29Patch availableCNA
  • cacti VendorCacti Affected before 1.2.29 Fixed in 1.2.29 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cacti:cacti:*:*:*:*:*:*:*:*before 1.2.29VulnerableCacti
  • cpe:2.3:a:cacti:cacti:*:*:*:*:*:*:*:* Versions before 1.2.29 Vulnerable ·Cacti

Remediation

  • Fix · CNA cacti (Cacti) Fixed in 1.2.29

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-66399

References

Exploit 1

  • TI-2022-22813 Unauthenticated command injection in cacti KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-20500 Unauthenticated SQL Injection in graph_view.php in Cacti CVSS 3.1CRITICAL 9.8
  • TI-2024-16869 Cacti RCE vulnerability when importing packages CVSS 3.1CRITICAL 9.1
  • TI-2024-20809 SQL Injection vulnerability in automation_get_new_graphs_sql CVSS 3.1HIGH 8.8
  • TI-2023-26750 Cacti SQL Injection vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-18110 Cacti allows Arbitrary File Creation leading to RCE CVSS 4.0HIGH 8.7
See all 151 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences