CVE-2026-125402 | BDVDB-2026-402646 Detail
Ettercapettercap
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact high. Attack vector: adjacent.
Weaknesses#
- CWE-125 Out-of-bounds Read
References#
- https://github.com/Ettercap/ettercap/security/advisories/GHSA-v48w-7cvh-c7f4
- https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98
- https://github.com/Ettercap/ettercap/pull/1330
- https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/ec_sslwrap.c#L589-L604
- https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-heap-out-of-bounds-read-via-tls-sni-parsing
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.