Is CVE-2026-125401 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-125401 being exploited in the wild.

How severe is CVE-2026-125401?

High severity, with a CVSS score of 8.1, published 10 November 2026.

Is there a fix for CVE-2026-125401?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-125401 attacked?

It is attacked over the network.

Am I affected by CVE-2026-125401?

Check whether you run Ettercap at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-125401: Ettercap heap buffer overflow in Gadu-Gadu dissector

CVE-2026-125401 · Severity: high · CVSS 8.1 · Published 2026-11-10

Ettercap is a network traffic analysis and packet manipulation tool used for network security monitoring. A heap buffer overflow in the Gadu-Gadu protocol handler allows remote attackers to send specially crafted traffic on port 8074 that corrupts memory in the Ettercap process, which typically runs with root privileges. This could lead to code execution or denial of service.

Technologies: Ettercap. Vendors: Ettercap.

Quick answers

Is CVE-2026-125401 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-125401 being exploited in the wild.
How severe is CVE-2026-125401?: High severity, with a CVSS score of 8.1, published 10 November 2026.
Which products and versions are affected?: Ettercap through 0.8.4.1.
Is there a fix for CVE-2026-125401?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-125401 attacked?: It is attacked over the network.
Am I affected by CVE-2026-125401?: Check whether you run Ettercap at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A heap buffer overflow exists in the gg_get_version() function in src/dissectors/ec_gg.c, where up to 44 bytes are written into a 30-byte allocation. Remote attackers can exploit this by sending crafted Gadu-Gadu protocol traffic on TCP port 8074 through a monitored network segment. The vulnerability requires no authentication and runs in the context of the Ettercap process, typically root.

Affected products

Ettercap Ettercap through 0.8.4.1

Timeline

2026-11-10: disclosed

References

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