{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-129431", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-14T12:15:38.957Z", "datePublished": "2026-11-14T12:32:53.988Z", "dateUpdated": "2026-11-14T12:32:53.988Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-14T12:32:53.988Z"}, "datePublic": "2026-11-13T00:00:00.000Z", "title": "Ettercap through 0.8.5.1 Heap Out-of-Bounds Read via SOCKS5 Dissector", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Read", "cweId": "CWE-125", "type": "CWE"}]}], "affected": [{"vendor": "Ettercap", "product": "ettercap", "defaultStatus": "unaffected", "packageURL": "pkg:github/Ettercap/ettercap", "versions": [{"version": "0", "lessThanOrEqual": "0.8.5.1", "status": "affected", "versionType": "custom"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ettercap-project:ettercap:*:*:*:*:*:*:*:*", "versionEndIncluding": "0.8.5.1"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/Ettercap/ettercap/pull/1340", "tags": ["issue-tracking", "patch"], "name": "Pull Request #1340"}, {"url": "https://github.com/Ettercap/ettercap/blob/v0.8.5.1/src/dissectors/ec_socks.c#L108-L124", "tags": ["technical-description"], "name": "Unchecked SOCKS5 credential copy at v0.8.5.1"}, {"url": "https://github.com/Ettercap/ettercap", "tags": ["product"]}, {"name": "VulnCheck Advisory: Ettercap through 0.8.5.1 Heap Out-of-Bounds Read via SOCKS5 Dissector", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/ettercap-through-0.8.5.1-heap-out-of-bounds-read-via-socks5-dissector"}], "credits": [{"lang": "en", "value": "stilwel", "type": "finder"}, {"lang": "en", "value": "Emilio Escobar", "type": "remediation developer"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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