Security advisory

{
  "id": "60b253e03349a95aba90de7aab7995475b5f38616b2a42d2e8c704c7bffdd40f",
  "url": "https://osv.dev/vulnerability/CVE-2025-55763",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-55763",
    "summary": "Buffer Overflow in the URI parser of CivetWeb 1.14 through 1.16 (latest) allows a remote attacker to achieve remote code execution via a crafted HTTP request. This vulnerability is triggered during request processing and may allow an attacker to corrupt heap memory, potentially leading to denial of service or arbitrary code execution.",
    "evidence": "osv:CVE-2025-55763",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-55763",
      "aliases": [
        "CVE-2025-55763"
      ],
      "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/civetweb/civetweb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c1d08d3c35bc939da7bec09973bda77c702c1d00"
                },
                {
                  "last_affected": "d7ba35bbb649209c66e582d5a0244ba988a15159"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.14"
                      },
                      {
                        "last_affected": "1.16"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "cpe": "cpe:2.3:a:civetweb_project:civetweb:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.14"
                      },
                      {
                        "last_affected": "1.16"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.16",
            "v1.15",
            "v1.14"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-55763.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.995937538Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55763.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-55763",
        "https://github.com/civetweb/civetweb",
        "https://github.com/krispybyte/CVE-2025-55763"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55763.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-55763",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 491447,
  "published_at": "2025-08-29T00:00:00+00:00"
}