{"id":"CVE-2026-129431","summary":"Ettercap through 0.8.5.1 Heap Out-of-Bounds Read via SOCKS5 Dissector","details":"Ettercap through 0.8.5.1 contains a heap out-of-bounds read vulnerability in dissector_socks() in src/dissectors/ec_socks.c that allows network-adjacent attackers to read heap memory via unchecked SOCKS5 username/password lengths. Attackers can send a crafted SOCKS5 authentication packet observed by Ettercap to read up to 255 bytes past the heap buffer, disclosing memory printed and logged as captured credentials.","modified":"2026-11-15T02:46:42.819239828Z","published":"2026-11-14T12:32:53.988Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/129xxx/CVE-2026-129431.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/129xxx/CVE-2026-129431.json"},{"type":"PACKAGE","url":"https://github.com/Ettercap/ettercap"},{"type":"ARTICLE","url":"https://github.com/Ettercap/ettercap/blob/v0.8.5.1/src/dissectors/ec_socks.c#L108-L124"},{"type":"FIX","url":"https://github.com/Ettercap/ettercap/pull/1340"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-129431"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/ettercap-through-0.8.5.1-heap-out-of-bounds-read-via-socks5-dissector"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ettercap/ettercap","events":[{"introduced":"0"},{"last_affected":"832524f3c4c215f1007fe9f190dbf052ee965b55"}],"database_specific":{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"0"},{"last_affected":"0.8.5.1"}],"source":"AFFECTED_FIELD"}]}}],"versions":["v0.8.5.1","v0.8.4.1","v0.8.4","v0.8.3.1","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.6","v0.7.5.3","v0.7.5.2","v0.7.5.1","v0.7.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-129431.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}