Wireshark up to 4.4.10/4.6.0 MEGACO Dissector infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Wireshark up to 4.4.10/4.6.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the component MEGACO Dissector. This manipulation causes infinite loop. The identification of this vulnerability is CVE-2025-13946. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Wireshark up to 4.4.10/4.6.0. It has been declared as problematic. Affected by this vulnerability is an unknown function of the component MEGACO Dissector. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability. The summary by CVE is:

MEGACO dissector infinite loop in Wireshark 4.6.0 to 4.6.1 and 4.4.0 to 4.4.11 allows denial of service

It is possible to read the advisory at wireshark.org. This vulnerability is known as CVE-2025-13946 since 12/03/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 277371 (Linux Distros Unpatched Vulnerability : CVE-2025-13946), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.4.11 or 4.6.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (277371), EUVD (EUVD-2025-200732) and CERT Bund (WID-SEC-2025-2730). 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: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

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

CVSSv2info

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

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / 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: 277371
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-13946

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Wireshark 4.4.11/4.6.1

Timelineinfo

12/03/2025 Advisory disclosed
12/03/2025 +0 days CVE reserved
12/03/2025 +0 days VulDB entry created
12/04/2025 +1 days VulDB entry last update

Sourcesinfo

Product: wireshark.org

Advisory: 20884
Status: Confirmed

CVE: CVE-2025-13946 (🔒)
GCVE (CVE): GCVE-0-2025-13946
GCVE (VulDB): GCVE-100-334159
EUVD: 🔒
CERT Bund: WID-SEC-2025-2730 - Wireshark: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/03/2025 10:35
Updated: 12/04/2025 16:14
Changes: 12/03/2025 10:35 (65), 12/03/2025 14:39 (1), 12/03/2025 15:59 (7), 12/04/2025 16:14 (2)
Complete: 🔍
Cache ID: 216::103

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

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