CVE-2026-125402

CVE-2026-125402CVE-2026-125402

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.

Scoring

CVSS 8.1 ()
VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Last modified2026-11-10
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.