CVE-2026-125401

EUVD-2026-120564
Ettercap through 0.8.4.1 contains a heap buffer overflow vulnerability in gg_get_version() in src/dissectors/ec_gg.c that writes up to 44 bytes into a 30-byte allocation. Remote attackers can send Gadu-Gadu traffic on TCP port 8074 with a crafted version field through a monitored network to corrupt heap memory in the Ettercap process, which normally runs as root.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
8.1 HIGH
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 33.09%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
ettercap-projectettercap
𝑥
≤ 0.8.4.1
CNA
Debian logo
Debian Releases
Debian Product
Codename
ettercap
bookworm
vulnerable
sid
vulnerable
trixie
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
ettercap
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
stonking
needs-triage
trusty
dne
xenial
needs-triage
Common Weakness Enumeration
References
https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/dissectors/ec_gg.c#L599
https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98
https://github.com/Ettercap/ettercap/pull/1330
https://github.com/Ettercap/ettercap/security/advisories/GHSA-vrjv-f8gv-2h35
https://www.vulncheck.com/advisories/ettercap-through-0.8.4.1-heap-buffer-overflow-via-gadu-gadu-dissector