{"id":"CVE-2025-43970","aliases":["GHSA-hqhq-hp5x-xp3w","GO-2025-3630"],"url":"https://o3.security/vulnerability/CVE-2025-43970","summary":"GoBGP does not properly check the input length","details":"An issue was discovered in GoBGP before 3.35.0. pkg/packet/mrt/mrt.go does not properly check the input length, e.g., by ensuring that there are 12 bytes or 36 bytes (depending on the address family).","published":"2025-04-21T00:00:00Z","modified":"2026-08-12T03:51:21.070575260Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"},"epss":{"score":0.00405,"percentile":0.33407,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/osrg/gobgp","fixedVersion":null},{"ecosystem":"Go","name":"github.com/osrg/gobgp/v3","fixedVersion":"3.35.0"}],"fix":{"url":"https://github.com/osrg/gobgp/commit/5153bafbe8dbe1a2f02a70bbf0365e98b80e47b0","label":"osrg/gobgp@5153baf"},"references":[{"type":"WEB","url":"https://github.com/osrg/gobgp/compare/v3.34.0...v3.35.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/43xxx/CVE-2025-43970.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-43970"},{"type":"FIX","url":"https://github.com/osrg/gobgp/commit/5153bafbe8dbe1a2f02a70bbf0365e98b80e47b0"},{"type":"PACKAGE","url":"https://github.com/osrg/gobgp"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:21.070575260Z"}}