Security advisory

{
  "id": "49773f0fab1291bb856b6098ac2983afcff9a4f5b5248bfdcb381c7094a8e0a9",
  "url": "https://osv.dev/vulnerability/CVE-2019-0548",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-0548",
    "summary": "A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka \"ASP.NET Core Denial of Service Vulnerability.\" This affects ASP.NET Core 2.2, ASP.NET Core 2.1. This CVE ID is unique from CVE-2019-0564.",
    "evidence": "osv:CVE-2019-0548",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-0548",
      "aliases": [
        "CVE-2019-0548"
      ],
      "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/dotnet/aspnetcore",
              "type": "GIT",
              "events": [
                {
                  "introduced": "00e08d8c11f4e9649492342c9c613a758efd2e4d"
                },
                {
                  "last_affected": "ce8cf65589734f82b0536c543aba5bd60d0a5a98"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.1"
                      },
                      {
                        "last_affected": "2.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:microsoft:asp.net_core:2.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.2"
                      },
                      {
                        "last_affected": "2.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.1",
            "2.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-0548.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:25.598682729Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2019:0040",
        "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0548"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-0548",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431394,
  "published_at": "2019-01-08T21:29:00.707+00:00"
}