{"id":"CVE-2026-125403","published":"2026-11-10T00:17:14.860","lastModified":"2026-11-10T19:21:12.913","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.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_sslwrap.c#L1294-L1322","tags":[]},{"url":"https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98","tags":[]},{"url":"https://github.com/Ettercap/ettercap/pull/1330","tags":[]},{"url":"https://github.com/Ettercap/ettercap/security/advisories/GHSA-hq2w-pg4m-6w63","tags":[]},{"url":"https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-out-of-bounds-read-via-sslw-remove-sts","tags":[]}],"exploitRefs":[{"url":"https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_sslwrap.c#L1294-L1322","tags":[]},{"url":"https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98","tags":[]},{"url":"https://github.com/Ettercap/ettercap/pull/1330","tags":[]},{"url":"https://github.com/Ettercap/ettercap/security/advisories/GHSA-hq2w-pg4m-6w63","tags":[]}],"hasPoc":true,"ai":null}