CVE-2026-125401

Description

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.

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