Heap-based Buffer Overflow Affecting wireshark package, versions [4.4.0,4.4.18)[4.6.0,4.6.8)


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.19% (9th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Heap-based Buffer Overflow vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-UNMANAGED-WIRESHARK-19427475
  • published29 Aug 2026
  • disclosed20 Aug 2026
  • creditUnknown

Introduced: 20 Aug 2026

CVE-2026-76888  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade wireshark to version 4.4.18, 4.6.8 or higher.

Overview

Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the RDP protocol dissector. An attacker can cause the application to crash by sending specially crafted network traffic that is processed by the affected dissector.

CVSS Base Scores

version 4.0
version 3.1