CVE-2026-19694: Heap-based Buffer Overflow in Wireshark

Published Aug 13, 2026
·
Updated

TTX Logger file parser crash in 4.6.0 to 4.6.7 allows denial of service

Affected Software

1 affected component
Wireshark>=4.6.0<=4.6.7

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Wireshark to a version that resolves this vulnerability.

    Fixed in 4.6.8

Event History

Aug 13, 2026
CVE Published
via MITRE·08:04 AM
Data Sourced
via MITRE·08:04 AM
RemedyDescriptionSeverityWeakness
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Frequently Asked Questions

1

What is CVE-2026-19694?

CVE-2026-19694 is a vulnerability in Wireshark that can cause a heap-based buffer overflow in the TTX Logger file parser.

2

What is the severity of CVE-2026-19694?

CVE-2026-19694 has a medium severity rating of 4.7.

3

How do I fix CVE-2026-19694?

To fix CVE-2026-19694, you should update Wireshark to version 4.6.8 or later.

4

What impact does CVE-2026-19694 have on Wireshark users?

CVE-2026-19694 can lead to a denial of service, causing the application to crash.

5

Which versions of Wireshark are affected by CVE-2026-19694?

CVE-2026-19694 affects Wireshark versions 4.6.0 to 4.6.7.

Company

Resources

Contact

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CVE-2026-19694 - Heap-based Buffer Overflow in Wireshark - SecAlerts