CVE-2026-76926

Analyzed Analyzed - Analysis Complete

BUSMASTER File Parser Denial of Service

Publication date: 2026-08-19

Last updated on: 2026-09-01

Assigner: GitLab Inc.

Description

BUSMASTER file parser abnormal exit in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-19

Last Modified

2026-09-01

Generated

2026-09-09

AI Q&A

2026-08-20

EPSS Evaluated

2026-09-07

NVD

CVE-2026-76926

EUVD

EUVD-2026-63163

Affected Vendors & Products

Vendor	Product	Version / Range
wireshark	wireshark	From 4.6.0 (inc) to 4.6.8 (exc)
wireshark	wireshark	From 4.4.0 (inc) to 4.4.18 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-617	The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

Attack-Flow Graph

Executive Summary

This vulnerability is a denial of service issue in the BUSMASTER file parser versions 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18. It causes an abnormal exit when processing certain files, leading to service disruption.

Detection Guidance

This vulnerability is related to a file parser in BUSMASTER versions 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18. Detection involves checking the installed version of BUSMASTER. If you are running a vulnerable version, update to the latest non-vulnerable release immediately.

Impact Analysis

The vulnerability allows attackers to cause a denial of service by exploiting the abnormal exit in the file parser. This could lead to application crashes or unresponsiveness when processing malicious files.

Compliance Impact

This vulnerability causes a denial of service via abnormal exit in the BUSMASTER file parser. It does not directly impact data confidentiality or integrity but may disrupt system availability, which could indirectly affect compliance with standards requiring system uptime or availability.

Mitigation Strategies

Update BUSMASTER to a version outside the affected range (4.6.0 to 4.6.7 and 4.4.0 to 4.4.18).

Monitor network traffic for unusual patterns that may indicate denial of service attempts.

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