{"id":"CVE-2025-68383","aliases":["GO-2025-4252"],"url":"https://o3.security/vulnerability/CVE-2025-68383","summary":"Filebeat Beats has Buffer Overflow via Malformed Syslog Message or Malicious Tokenizer Pattern in Dissect Configuration","details":"Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) in Filebeat Syslog parser and the Libbeat Dissect processor can allow a user to trigger a Buffer Overflow (CAPEC-100) and cause a denial of service (panic/crash) of the Filebeat process via either a malformed Syslog message or a malicious tokenizer pattern in the Dissect configuration.","published":"2025-12-19T00:31:42Z","modified":"2026-09-10T03:50:31.294125666Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00186,"percentile":0.08231,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/elastic/beats/v7","fixedVersion":"8.19.9"},{"ecosystem":"Go","name":"github.com/elastic/beats/v7","fixedVersion":"9.1.9"},{"ecosystem":"Go","name":"github.com/elastic/beats/v7","fixedVersion":"9.2.3"},{"ecosystem":"Go","name":"github.com/elastic/beats/v7","fixedVersion":"7.0.0-alpha2.0.20251204214633-dd3af18220bf"},{"ecosystem":"Go","name":"github.com/elastic/beats","fixedVersion":null}],"fix":{"url":"https://github.com/elastic/beats/commit/27a168fb1c598d4a16748e9a7382bc0d197335a5","label":"elastic/beats@27a168f"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68383"},{"type":"WEB","url":"https://github.com/elastic/beats/commit/27a168fb1c598d4a16748e9a7382bc0d197335a5"},{"type":"WEB","url":"https://github.com/elastic/beats/commit/2f971a057eea68e057b47829950cd8c26805df30"},{"type":"WEB","url":"https://github.com/elastic/beats/commit/339fa3f887a14c91e0c955b50a3b8819393bd632"},{"type":"WEB","url":"https://discuss.elastic.co/t/filebeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-32/384180"},{"type":"PACKAGE","url":"https://github.com/elastic/elasticsearch"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T03:50:31.294125666Z"}}