CVE Vulnerabilities

CVE-2025-9817

NULL Pointer Dereference

Published: Sep 03, 2025 | Modified: Oct 09, 2025

CVSS 3.x

7.5

HIGH

Source:

NVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.x

RedHat/V2

RedHat/V3

5.5 MODERATE

Ubuntu

MEDIUM

Vulnerability-free packages from our partners

Additional information

NVD	https://nvd.nist.gov/vuln/detail/CVE-2025-9817
CWE	https://cwe.mitre.org/data/definitions/476.html

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

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

Name	Vendor	Start Version	End Version
Wireshark	Wireshark	4.4.0 (including)	4.4.9 (excluding)
Wireshark	Ubuntu	upstream	*

Potential Mitigations

References

Aqua Container Security

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