{"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-2026-125400","cwes":["CWE-416"],"description":"Ettercap through 0.8.4.1 contains a use-after-free vulnerability in func_pcre() in src/ec_filter.c that reads the PCRE2 ovector after freeing match data. Network-adjacent attackers can send packets matching a loaded pcre_regex() substitution filter to corrupt memory and potentially execute code as root.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":8.8,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794266882839,"publishedAt":1794266882839,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/Ettercap/ettercap/security/advisories/GHSA-f3j5-rhhr-85j5"},{"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/ec_filter.c#L593-L625"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-use-after-free-via-pcre2-filter-substitution"}],"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":"9563624c99ce5aab5dc5ac2c7b0f88fa524f813f1f89373d4da42ca7f7c8968a","sources":[{"modifiedAt":1794266882839,"name":"CNA: VulnCheck","retrievedAt":1794269367172,"url":"https://www.cve.org/CVERecord?id=CVE-2026-125400"}],"ssvc":null,"status":"published","title":"Ettercap through 0.8.4.1 Use-After-Free via PCRE2 Filter Substitution","updatedAt":1794269367172}