NULL Pointer Dereference Affecting wireshark package, versions <4.4.9-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.02% (3rd 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 NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-DEBIANUNSTABLE-WIRESHARK-12484658
  • published4 Sept 2025
  • disclosed3 Sept 2025

Introduced: 3 Sep 2025

NewCVE-2025-9817  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Debian:unstable wireshark to version 4.4.9-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wireshark package and not the wireshark package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service

CVSS Base Scores

version 3.1