CVE-2026-76891
Analyzed Analyzed - Analysis Complete

Crash in sharkd Allows 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-2026-76891
EUVD
EUVD-2026-63162

Affected Vendors & Products

Showing 2 associated CPEs
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
CWE Icon
KEV
KEV Icon
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CWE-825 The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.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

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability involves a crash in sharkd, a component of a software tool, affecting versions 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18. The crash can lead to a denial of service, meaning the software may become unresponsive or stop functioning properly.

Detection Guidance

Detecting CVE-2026-76891 requires checking Wireshark versions and monitoring for crashes in sharkd. Verify installed versions with 'wireshark -v' or 'sharkd -v'. Look for crashes when processing network traffic or capture files. Monitor logs for sharkd segmentation faults or unexpected terminations.

Impact Analysis

This vulnerability could allow an attacker to cause the affected software to crash, leading to service disruption. Users relying on the software for critical tasks may experience downtime or reduced functionality.

Compliance Impact

This vulnerability causes a denial of service in sharkd, which may lead to service unavailability. While not directly impacting data privacy or confidentiality, prolonged downtime could indirectly affect compliance with standards like GDPR or HIPAA by disrupting access to critical systems or data processing 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). Disable sharkd if not needed to prevent potential crashes.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-76891. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart