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Public proof of conceptFix available

CVE-2025-66399

A public proof of concept exists; no exploitation attested.

  • Published2025-12-02
  • Fixed in1.2.29
  • WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2025-12-0218:15CVE publishedNVD

Versions per branch

NVD
Cacti
BranchAffectedFixed in
1.2< 1.2.291.2.29

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • cacti
    Affected
    • = < 1.2.29no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-12-08

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • cactiUbuntu:Pro:22.04:LTSall versions · no fixed version listed
  • cactiUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • cactiUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • cactiUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • cactiUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • cactiUbuntu:24.04:LTSall versions · no fixed version listed
  • cactiDebian:14all versions · fixed in 1.2.30+ds1-1
  • cactiDebian:13all versions · fixed in 1.2.30+ds1-1

1 more package range on OSV.dev

Vendor advisories

  • CVE-2025-66399 Red Hat Product Security

    cacti: SNMP Command Injection leads to RCE in Cacti

Full record on NVD

Fix

  1. Update Cacti to 1.2.29

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2025-12-02
  • CNACVSS 4.07.4known since 2026-10-23
  • NVDCVSS 3.18.8read 2026-10-23
  • CNAweakness (CWE)CWE-77known since 2026-10-23
  • FIRST EPSSEPSS score10.9 %read 2026-11-09
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2025-12-02
Last Modified
2026-10-18
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-66399?

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.

Is CVE-2025-66399 actively exploited?

A proof-of-concept exploit exists for CVE-2025-66399, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-66399?

CVE-2025-66399 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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