{"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-2026-125403","cwes":["CWE-125"],"description":"Ettercap through 0.8.4.1 contains an out-of-bounds read and size_t underflow vulnerability in sslw_remove_sts() in src/ec_sslwrap.c, caused by a stale length and an unchecked memmem() result when stripping Strict-Transport-Security headers. A malicious HTTPS server whose response passes through Ettercap's SSL interception can trigger out-of-bounds reads and memory corruption 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":1794266884934,"publishedAt":1794266884934,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/Ettercap/ettercap/security/advisories/GHSA-hq2w-pg4m-6w63"},{"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_sslwrap.c#L1294-L1322"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-out-of-bounds-read-via-sslw-remove-sts"}],"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":"ac225592d6c5086a776b32a8f81687c21b5fd162d1563fa4844e0b48a56a9007","sources":[{"modifiedAt":1794266884934,"name":"CNA: VulnCheck","retrievedAt":1794269370536,"url":"https://www.cve.org/CVERecord?id=CVE-2026-125403"}],"ssvc":null,"status":"published","title":"Ettercap through 0.8.4.1 Out-of-Bounds Read via sslw_remove_sts","updatedAt":1794269370536}