Improperly Controlled Sequential Memory Allocation in Wireshark

{
  "id": "cab816714bb2d85bc8146a95029dcf119cff820193bd85749624e06cf6c76cc0",
  "url": "https://osv.dev/vulnerability/CVE-2025-13945",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Improperly Controlled Sequential Memory Allocation in Wireshark",
    "summary": "HTTP3 dissector crash in Wireshark 4.6.0 and 4.6.1 allows denial of service",
    "evidence": "osv:CVE-2025-13945",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-13945",
      "aliases": [
        "CVE-2025-13945"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wireshark/wireshark",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cdfb6721e77c19d43f4787f66e9d5f2525281a22"
                },
                {
                  "fixed": "24d5e2b5a3dcb12d282d891479c17826ae1ff927"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.6.0"
                      },
                      {
                        "fixed": "4.6.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            },
            {
              "repo": "https://gitlab.com/wireshark/wireshark",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cdfb6721e77c19d43f4787f66e9d5f2525281a22"
                },
                {
                  "fixed": "291c718be4fe6c1c9d261da6dedd514c8f611834"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "4.6.0"
                      },
                      {
                        "fixed": "4.6.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "cpe": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.6.0"
                      },
                      {
                        "fixed": "4.6.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.6.2rc0",
            "v4.6.1",
            "v4.6.1rc0",
            "v4.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-13945.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.556318865Z",
      "provider": "osv",
      "references": [
        "https://www.wireshark.org/security/wnpa-sec-2025-07.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/13xxx/CVE-2025-13945.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-13945",
        "https://gitlab.com/wireshark/wireshark/-/issues/20860"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-1325"
        ],
        "cna_assigner": "GitLab",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/13xxx/CVE-2025-13945.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-13945",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503924,
  "published_at": "2025-12-03T08:04:49.403+00:00"
}