Wireshark up to 4.4.14/4.6.4 DHT Protocol Dissector recursion

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Wireshark up to 4.4.14/4.6.4. It has been rated as problematic. Impacted is an unknown function of the component DHT Protocol Dissector. Performing a manipulation results in recursion. This vulnerability is known as CVE-2026-5408. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Wireshark up to 4.4.14/4.6.4. This affects an unknown function of the component DHT Protocol Dissector. The manipulation with an unknown input leads to a recursion vulnerability. CWE is classifying the issue as CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. This is going to have an impact on availability. The summary by CVE is:

BT-DHT protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

The weakness was published by Brendan Coles as 21067. It is possible to read the advisory at wireshark.org. This vulnerability is uniquely identified as CVE-2026-5408 since 04/02/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 311427 (Wireshark 4.6.x < 4.6.5 Multiple Vulnerabilities (macOS)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.4.15 or 4.6.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (311427), EUVD (EUVD-2026-26321) and CERT Bund (WID-SEC-2026-1311). 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: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (GitLab): 🔒

CVSSv2info

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

Exploitinginfo

Class: Recursion
CWE: CWE-674 / 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: 311427
Nessus Name: Wireshark 4.6.x < 4.6.5 Multiple Vulnerabilities (macOS)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Wireshark 4.4.15/4.6.5

Timelineinfo

04/02/2026 CVE reserved
04/30/2026 +28 days Advisory disclosed
04/30/2026 +0 days VulDB entry created
05/01/2026 +1 days VulDB entry last update

Sourcesinfo

Product: wireshark.org

Advisory: 21067
Researcher: Brendan Coles
Status: Confirmed

CVE: CVE-2026-5408 (🔒)
GCVE (CVE): GCVE-0-2026-5408
GCVE (VulDB): GCVE-100-360255
EUVD: 🔒
CERT Bund: WID-SEC-2026-1311 - Wireshark: Mehrere Schwachstellen

Entryinfo

Created: 04/30/2026 10:02
Updated: 05/01/2026 22:39
Changes: 04/30/2026 10:02 (65), 04/30/2026 10:20 (1), 04/30/2026 17:13 (7), 05/01/2026 22:39 (2)
Complete: 🔍
Cache ID: 216::103

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

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