Wireshark up to 4.6.3 NTS-KE Protocol Dissector null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Wireshark up to 4.6.3. Affected is an unknown function of the component NTS-KE Protocol Dissector. Performing a manipulation results in null pointer dereference. This vulnerability is known as CVE-2026-3202. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Wireshark up to 4.6.3. It has been classified as problematic. This affects an unknown functionality of the component NTS-KE Protocol Dissector. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

NTS-KE protocol dissector crash in Wireshark 4.6.0 to 4.6.3 allows denial of service

It is possible to read the advisory at wireshark.org. This vulnerability is uniquely identified as CVE-2026-3202 since 02/25/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 300137 (Linux Distros Unpatched Vulnerability : CVE-2026-3202), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.6.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (300137), EUVD (EUVD-2026-8661) and CERT Bund (WID-SEC-2026-0536). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source Wireshark

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.1

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.7
CNA Vector (GitLab): 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 300137
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-3202

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Wireshark 4.6.4

Timelineinfo

02/25/2026 Advisory disclosed
02/25/2026 +0 days CVE reserved
02/25/2026 +0 days VulDB entry created
03/02/2026 +5 days VulDB entry last update

Sourcesinfo

Product: wireshark.org

Advisory: wireshark.org
Status: Confirmed

CVE: CVE-2026-3202 (🔒)
GCVE (CVE): GCVE-0-2026-3202
GCVE (VulDB): GCVE-100-347775
EUVD: 🔒
CERT Bund: WID-SEC-2026-0536 - Wireshark: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 02/25/2026 15:53
Updated: 03/02/2026 03:52
Changes: 02/25/2026 15:53 (64), 02/25/2026 18:07 (1), 02/26/2026 16:04 (7), 03/02/2026 03:52 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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