CVE-2026-76890

Analyzed Analyzed - Analysis Complete

Crash in Wireshark sharkd Denial of Service

Publication date: 2026-08-19

Last updated on: 2026-08-31

Assigner: GitLab Inc.

Description

Crash in sharkd 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:
Percentile:

Meta Information

Published

2026-08-19

Last Modified

2026-08-31

Generated

2026-09-09

AI Q&A

2026-08-20

EPSS Evaluated

2026-09-07

NVD

CVE-2026-76890

EUVD

EUVD-2026-63161

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CWE-825	The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.

Attack-Flow Graph

Executive Summary

This vulnerability involves a crash in sharkd, a component in versions 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 of a software. The crash can be triggered to cause a denial of service, making the system unavailable for users.

Detection Guidance

This vulnerability causes a crash in sharkd, which may be detected by monitoring for unexpected shutdowns or errors in Wireshark's sharkd component. Check logs for sharkd crashes or segmentation faults. No specific commands are provided in the context.

Impact Analysis

The vulnerability allows an attacker to cause a denial of service by crashing sharkd. This could disrupt services relying on this component, leading to downtime or reduced availability.

Compliance Impact

This vulnerability causes a denial of service through a crash in sharkd, which does not directly impact data confidentiality or integrity required by standards like GDPR or HIPAA. However, availability issues could indirectly affect compliance if services become unavailable, potentially disrupting regulated operations.

Mitigation Strategies

Update Wireshark to a version outside the affected range (4.6.0 to 4.6.7 and 4.4.0 to 4.4.18) to address the crash issue in sharkd that causes denial of service.

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