CVE-2026-15167 Stack-based Buffer Overflow in Wireshark

High 7.5 Published 8 Jul 2026 Updated 9 Jul 2026

A stack-based buffer overflow in the DBS Etherwatch parser allows attackers to cause a denial of service in Wireshark.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-15167?

CVE-2026-15167 is a high-severity memory corruption vulnerability in Wireshark Wireshark, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

DBS Etherwatch file parser crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service

Weakness: CWE-121

Which versions are affected by CVE-2026-15167?

It affects 1 product.

Products include Wireshark Wireshark.

How do I fix CVE-2026-15167?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-15167 being exploited?

There is no known exploitation of CVE-2026-15167 in the wild and no public exploit code.

All Wireshark Wireshark vulnerabilities

Sources

Also known as AZL-92120, DEBIAN-CVE-2026-15167, GHSA-qx92-wm5h-2pg7, MINI-x2h5-7m6c-f7wx, UBUNTU-CVE-2026-15167.