VDB-393579 · CVE-2026-76920 · EUVD-2026-63171

Wireshark up to 4.4.17/4.6.7 3GPP denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.4	$0-$5k	0.34

Summaryinfo

A vulnerability marked as problematic has been reported in Wireshark up to 4.4.17/4.6.7. Affected is an unknown function of the component 3GPP. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2026-76920. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Wireshark up to 4.4.17/4.6.7. This affects an unknown code of the component 3GPP. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

3gpp phone log file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

It is possible to read the advisory at wireshark.org. This vulnerability is uniquely identified as CVE-2026-76920 since 08/20/2026. The exploitability is told to be easy. 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.

Upgrading to version 4.4.18 or 4.6.8 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-63171). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Packet Analyzer Software

Name

Wireshark

Version

License

open-source

Website

Product: https://www.wireshark.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

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

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

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Wireshark 4.4.18/4.6.8

Timelineinfo

08/19/2026 VulDB entry created
08/20/2026 +0 days Advisory disclosed
08/20/2026 +0 days CVE reserved
08/20/2026 +0 days VulDB entry last update

Sourcesinfo

Product: wireshark.org

Advisory: wireshark.org
Status: Confirmed

CVE: CVE-2026-76920 (🔒)
GCVE (CVE): GCVE-0-2026-76920
GCVE (VulDB): GCVE-100-393579
EUVD: 🔒

Entryinfo

Created: 08/20/2026 01:05
Updated: 08/20/2026 04:04
Changes: 08/20/2026 01:05 (63), 08/20/2026 04:04 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.