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7.5

Wireshark may crash when processing crafted Bluetooth data

published 4 days ago
Summary

The Bluetooth DHT analysis feature in Wireshark can get caught in an uncontrolled loop when it encounters specially crafted packets. This can cause the program to become unresponsive or crash, interrupting network monitoring work. Upgrade Wireshark to the latest version or disable the Bluetooth DHT dissector until a fix is applied.

What to do
  • Update cleanstart wireshark to version 3.4.11-r0.
Affected software
Ecosystem VendorProductAffected versions
CleanStart cleanstart wireshark < 3.4.11-r0
Fix: upgrade to 3.4.11-r0
Original advisory text
Uncontrolled Recursion in the Bluetooth DHT dissector in Wireshark 3
Security vulnerability affects the wireshark package. Uncontrolled Recursion in the Bluetooth DHT dissector in Wireshark 3.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
7.5 High
Timeline
Published31 Oct 2026
Updated31 Oct 2026
First seen31 Oct 2026
Sources
CLEANSTART-2024-HU42904 · OSV
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