{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"Ettercap/ettercap","product":"ettercap","source":"CNA: VulnCheck","vendor":"Ettercap","versions":[{"lessThanOrEqual":"0.8.5.1","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-129431","cwes":["CWE-125"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":6.5,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}],"modifiedAt":1794659573988,"publishedAt":1794659573988,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/Ettercap/ettercap/pull/1340"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/Ettercap/ettercap/blob/v0.8.5.1/src/dissectors/ec_socks.c#L108-L124"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/Ettercap/ettercap"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/ettercap-through-0.8.5.1-heap-out-of-bounds-read-via-socks5-dissector"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/Ettercap/ettercap/pull/1340"}],"revision":"09233c6ec9bf57f987067d9227790411be1c2acf7edfea8157361afb2f28e128","sources":[{"modifiedAt":1794659573988,"name":"CNA: VulnCheck","retrievedAt":1794661714532,"url":"https://www.cve.org/CVERecord?id=CVE-2026-129431"}],"ssvc":null,"status":"published","title":"Ettercap through 0.8.5.1 Heap Out-of-Bounds Read via SOCKS5 Dissector","updatedAt":1794661714532}