CVE-2026-95388 Heap-based Buffer Overflow in Wireshark
A heap-based buffer overflow in the Sharkd utility allows attackers to cause a denial of service by crashing the application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-95388?
CVE-2026-95388 is a medium-severity memory corruption vulnerability in Wireshark Wireshark, published on 29 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Weakness: CWE-122
Which versions are affected by CVE-2026-95388?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2026-95388?
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-2026-95388 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-95388 exists.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as AZL-105018, DEBIAN-CVE-2026-95388, GHSA-xc7p-ghhr-9vx9, MINI-565x-v29m-5fcj, UBUNTU-CVE-2026-95388.