{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"Ettercap/ettercap","product":"ettercap","source":"CNA: VulnCheck","vendor":"Ettercap","versions":[{"lessThanOrEqual":"0.8.4.1","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-125401","cwes":["CWE-122"],"description":"Ettercap through 0.8.4.1 contains a heap buffer overflow vulnerability in gg_get_version() in src/dissectors/ec_gg.c that writes up to 44 bytes into a 30-byte allocation. Remote attackers can send Gadu-Gadu traffic on TCP port 8074 with a crafted version field through a monitored network to corrupt heap memory in the Ettercap process, which normally runs as root.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.2,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":8.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"}],"modifiedAt":1794266883530,"publishedAt":1794266883530,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/Ettercap/ettercap/security/advisories/GHSA-vrjv-f8gv-2h35"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98"},{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/Ettercap/ettercap/pull/1330"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/dissectors/ec_gg.c#L599"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-heap-buffer-overflow-via-gadu-gadu-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/commit/1d8badb713579419a29a494bb463a1af59707e98"},{"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/1330"}],"revision":"1bf9fa001b1c464f38d63801a04d9ddafe5de3144a5b3400525068cee4317d0e","sources":[{"modifiedAt":1794266883530,"name":"CNA: VulnCheck","retrievedAt":1794269368309,"url":"https://www.cve.org/CVERecord?id=CVE-2026-125401"}],"ssvc":null,"status":"published","title":"Ettercap through 0.8.4.1 Heap Buffer Overflow via Gadu-Gadu Dissector","updatedAt":1794269368309}