Security advisory

{
  "id": "ec763e15a5ee33241ca6b8c48d414e061a193676698661c1f961f29e337796f5",
  "url": "https://osv.dev/vulnerability/CVE-2018-19396",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19396",
    "summary": "ext/standard/var_unserializer.c in PHP 5.x through 7.1.24 allows attackers to cause a denial of service (application crash) via an unserialize call for the com, dotnet, or variant class.",
    "evidence": "osv:CVE-2018-19396",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-19396",
      "aliases": [
        "CVE-2018-19396"
      ],
      "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/php/php-src",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2c1949d4e7fb4248c2a6b95b45094951c3607c8d"
                },
                {
                  "last_affected": "5eadf3a999d07c85a01b0efd648e3419bc26d181"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0.0"
                      },
                      {
                        "last_affected": "7.1.24"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19396.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:23.895509372Z",
      "provider": "osv",
      "references": [
        "https://security.netapp.com/advisory/ntap-20181221-0005/",
        "https://bugs.php.net/bug.php?id=77177"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-19396",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431032,
  "published_at": "2018-11-20T21:29:01.9+00:00"
}