Security advisory

{
  "id": "4fc47b251e3c4fa1676deb11bae42875e00f13b20860e96a9d7345b255430ff1",
  "url": "https://osv.dev/vulnerability/CVE-2018-18066",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-18066",
    "summary": "snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.",
    "evidence": "osv:CVE-2018-18066",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-18066",
      "aliases": [
        "CVE-2018-18066"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/net-snmp/net-snmp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "463235edcc53e2477efe35da717fab292741aab5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:net-snmp:net-snmp:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "5.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v5.8.rc4",
            "v5.8.rc3",
            "v5.8.rc2",
            "v5.8.rc1",
            "v5.8.pre3",
            "v5.8.pre2",
            "v5.8.pre1",
            "v5.7",
            "v5.7.rc3",
            "v5.7.rc2",
            "v5.7.rc1",
            "v5.7.pre2",
            "v5.7.pre1",
            "v5.6",
            "v5.6.rc3",
            "v5.6.rc2",
            "v5.6.rc1",
            "v5.6.pre3",
            "v5.6.pre2",
            "v5.6.pre1",
            "v5.5",
            "v5.5.rc3",
            "v5.5.rc2",
            "v5.5.rc1",
            "v5.5.pre3",
            "v5.5.pre2",
            "v5.5.pre1",
            "v5.1.4.1",
            "v5.0.11.1",
            "v5.4",
            "v5.3",
            "v5.2",
            "v5.1",
            "v5.0.7",
            "v5.0.6",
            "v5.0.5",
            "v5.0.4",
            "v5.0.3",
            "v5.0.2",
            "v5.0.1",
            "v5.0",
            "v4.2",
            "v4.1.1",
            "v4.1",
            "v4.0.1",
            "v4.0",
            "v3.6.1",
            "v3.6",
            "v3.5",
            "v3.4",
            "v3.3",
            "v3.2",
            "v3.1.3",
            "v3.1.2.1",
            "v3.1.2",
            "v3.1.1",
            "v3.1.0.1",
            "v3.1",
            "v3.0.7.2",
            "v3.0.7.1",
            "v3.0.7",
            "v3.0.6",
            "v3.0.5",
            "v3.0.4",
            "v3.0.3",
            "v3.0.2.1",
            "v3.0.2",
            "v3.0.1",
            "v3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18066.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:55.842312623Z",
      "provider": "osv",
      "references": [
        "https://security.netapp.com/advisory/ntap-20181107-0001/",
        "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html",
        "https://dumpco.re/blog/net-snmp-5.7.3-remote-dos",
        "https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/",
        "https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "netapp:e-series_santricity_os_controller",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.5"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-18066",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438513,
  "published_at": "2018-10-08T18:29:00.52+00:00"
}