CVE-2026-76885 Buffer Over-read in Wireshark
A buffer over-read in the Tektronix K12xx file parser allows attackers to cause a denial of service via crafted files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-76885?
CVE-2026-76885 is a low-severity memory corruption vulnerability in Wireshark Wireshark, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Tektronix K12xx file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Weakness: CWE-126
Which versions are affected by CVE-2026-76885?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2026-76885?
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-2026-76885 being exploited?
There is no known exploitation of CVE-2026-76885 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as AZL-96800, DEBIAN-CVE-2026-76885, GHSA-m786-8g3q-v594, MINI-rfwq-7mxv-xj2f, UBUNTU-CVE-2026-76885.