Security advisory

{
  "id": "d4d892d059c3d39c34d7b5c96783ac80b4c2b7c872b98bb160950ee41e305e4f",
  "url": "https://osv.dev/vulnerability/CVE-2025-43971",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-43971",
    "summary": "An issue was discovered in GoBGP before 3.35.0. pkg/packet/bgp/bgp.go allows attackers to cause a panic via a zero value for softwareVersionLen.",
    "evidence": "osv:CVE-2025-43971",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-43971",
      "aliases": [
        "CVE-2025-43971",
        "GHSA-7m35-vw2c-696v",
        "GO-2025-3631"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/osrg/gobgp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5365453707a9f9bcbeb2cc4cff24803ffcc9bbaa"
                },
                {
                  "fixed": "08a001e06d90e8bcc190084c66992f46f62c0986"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:osrg:gobgp:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.35.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "08a001e06d90e8bcc190084c66992f46f62c0986"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.34.0",
            "v3.33.0",
            "v3.32.0",
            "v3.31.0",
            "v3.30.0",
            "v3.29.0",
            "v3.28.0",
            "v3.27.0",
            "v3.26.0",
            "v3.25.0",
            "v3.24.0",
            "v3.23.0",
            "v3.22.0",
            "v3.21.0",
            "v3.20.0",
            "v3.19.0",
            "v3.17.0",
            "v3.16.0",
            "v3.15.0",
            "v3.14.0",
            "v3.13.0",
            "v3.12.0",
            "v3.11.0",
            "v3.10.0",
            "v3.9.0",
            "v3.8.0",
            "v3.7.0",
            "v3.6.0",
            "v3.5.0",
            "v3.4.0",
            "v3.3.0",
            "v3.2.0",
            "v3.1.0",
            "v3.0.0",
            "v3.0.0-rc4",
            "v3.0.0-rc3",
            "v3.0.0-rc2",
            "v3.0.0-rc1",
            "v2.34.0",
            "v2.33.0",
            "v2.32.0",
            "v2.31.0",
            "v2.30.0",
            "v2.29.0",
            "v2.28.0",
            "v2.27.0",
            "v2.26.0",
            "v2.25.0",
            "v2.24.0",
            "v2.23.0",
            "v2.22.0",
            "v2.21.0",
            "v2.20.0",
            "v2.19.0",
            "v2.18.0",
            "v2.17.0",
            "v2.16.0",
            "v2.15.0",
            "v2.14.0",
            "v2.13.0",
            "v2.12.0",
            "v2.11.0",
            "v2.10.0",
            "v2.9.0",
            "v2.8.0",
            "v2.7.0",
            "v2.6.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.0",
            "v2.2.0",
            "v2.1.0",
            "v2.0.0",
            "v1.33",
            "v1.32",
            "v1.31",
            "v1.30",
            "v1.29",
            "v1.28",
            "v1.27",
            "v1.26",
            "v1.25",
            "v1.24",
            "v1.23",
            "v1.22",
            "v1.21",
            "v1.20",
            "v1.19",
            "v1.18",
            "v1.17",
            "v1.16",
            "v1.15",
            "v1.14",
            "v1.13",
            "v1.12",
            "v1.11",
            "v1.10",
            "v1.9",
            "v1.8",
            "v1.7",
            "v1.6",
            "v1.5",
            "v1.4",
            "v1.3",
            "v1.2",
            "v1.1",
            "v1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-43971.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.561696733Z",
      "provider": "osv",
      "references": [
        "https://github.com/osrg/gobgp/compare/v3.34.0...v3.35.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/43xxx/CVE-2025-43971.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-43971",
        "https://github.com/osrg/gobgp/commit/08a001e06d90e8bcc190084c66992f46f62c0986"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-193"
        ],
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/43xxx/CVE-2025-43971.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-43971",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490900,
  "published_at": "2025-04-21T00:00:00+00:00"
}