Security advisory

{
  "id": "7fa3c5c46441982d8251ebcbd1dfa2ccf1df7284fac902d7527a035eaf86e64a",
  "url": "https://osv.dev/vulnerability/CVE-2020-10931",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-10931",
    "summary": "Memcached 1.6.x before 1.6.2 allows remote attackers to cause a denial of service (daemon crash) via a crafted binary protocol header to try_read_command_binary in memcached.c.",
    "evidence": "osv:CVE-2020-10931",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-10931",
      "aliases": [
        "BIT-memcached-2020-10931",
        "CVE-2020-10931"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/memcached/memcached",
              "type": "GIT",
              "events": [
                {
                  "introduced": "936325b13c5fd354ce2820cec135755e7a13d092"
                },
                {
                  "fixed": "02c6a2b62ddcb6fa4569a591d3461a156a636305"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.6.0"
                      },
                      {
                        "fixed": "1.6.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "02c6a2b62ddcb6fa4569a591d3461a156a636305"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.6.1",
            "1.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-10931.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-10931-18df148d",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "60729425787205775525629116097709335923",
                    "155528682348179993748654765443873325237",
                    "32507371053848599705866725944711999623",
                    "28161909986594551437781044272282309277",
                    "10891478072836292451615605853983240402"
                  ]
                },
                "source": "https://github.com/memcached/memcached/commit/02c6a2b62ddcb6fa4569a591d3461a156a636305",
                "target": {
                  "file": "memcached.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-10931-4c30de66",
                "digest": {
                  "length": 1982,
                  "function_hash": "286460963442076244618714784430206597643"
                },
                "source": "https://github.com/memcached/memcached/commit/02c6a2b62ddcb6fa4569a591d3461a156a636305",
                "target": {
                  "file": "memcached.c",
                  "function": "try_read_command_binary"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:44:52Z"
          }
        }
      ],
      "modified": "2026-10-20T13:44:52.074567036Z",
      "provider": "osv",
      "references": [
        "https://github.com/memcached/memcached/wiki/ReleaseNotes162",
        "https://github.com/memcached/memcached/commit/02c6a2b62ddcb6fa4569a591d3461a156a636305",
        "https://github.com/memcached/memcached/issues/629"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-10931",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388009,
  "published_at": "2020-03-24T15:15:12.107+00:00"
}