{"id":"CVE-2026-125402","published":"2026-11-10T00:17:14.703","lastModified":"2026-11-10T00:17:14.703","description":"Ettercap through 0.8.4.1 contains a heap out-of-bounds read vulnerability in sslw_get_clienthello_sni() in src/ec_sslwrap.c that trusts the unchecked 16-bit SNI length field. Network-adjacent attackers can send crafted TLS ClientHello messages during SSL interception to leak up to 64 KB of heap memory upstream or crash Ettercap.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_sslwrap.c#L589-L604","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-v48w-7cvh-c7f4","tags":[]},{"url":"https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-heap-out-of-bounds-read-via-tls-sni-parsing","tags":[]}],"exploitRefs":[{"url":"https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_sslwrap.c#L589-L604","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-v48w-7cvh-c7f4","tags":[]}],"hasPoc":true,"ai":null}