Security advisory

{
  "id": "f8d852d81af076a801c2530f7413c476fb0d0078cabc671b4ec7142f4c20d24b",
  "url": "https://osv.dev/vulnerability/CVE-2018-20434",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-20434",
    "summary": "LibreNMS 1.46 allows remote attackers to execute arbitrary OS commands by using the $_POST['community'] parameter to html/pages/addhost.inc.php during creation of a new device, and then making a /ajax_output.php?id=capture&format=text&type=snmpwalk&hostname=localhost request that triggers html/includes/output/capture.inc.php command mishandling.",
    "evidence": "osv:CVE-2018-20434",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-20434",
      "aliases": [
        "CVE-2018-20434",
        "GHSA-62q7-qj6g-gvr7"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/librenms/librenms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "bd5e692dc778ff7e7e05e5765baa2ad584154589"
                },
                {
                  "last_affected": "bd5e692dc778ff7e7e05e5765baa2ad584154589"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:librenms:librenms:1.46:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.46"
                      },
                      {
                        "last_affected": "1.46"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.46"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20434.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:55.336870361Z",
      "provider": "osv",
      "references": [
        "https://drive.google.com/file/d/1LcGmOY8x-TG-wnNr-cM_f854kxk0etva/view?usp=sharing",
        "https://gist.github.com/mhaskar/516df57aafd8c6e3a1d70765075d372d",
        "https://shells.systems/librenms-v1-46-remote-code-execution-cve-2018-20434/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-20434",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438390,
  "published_at": "2019-04-24T21:29:00.4+00:00"
}