CVE-2026-5408: CWE-674: Uncontrolled Recursion in Wireshark Foundation Wireshark
BT-DHT protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
AI Analysis
Technical Summary
This vulnerability (CVE-2026-5408) affects Wireshark Foundation's Wireshark software, specifically the BT-DHT protocol dissector. Due to uncontrolled recursion (CWE-674), certain malformed inputs can cause the dissector to crash, leading to denial of service. The affected versions are 4.6.0 through 4.6.4 and 4.4.0 through 4.4.14. The CVSS 3.1 base score is 5.5, reflecting medium severity with local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and impact limited to availability.
Potential Impact
Successful exploitation results in a denial of service by crashing the Wireshark application. There is no impact on confidentiality or integrity. The attack requires local access and user interaction, limiting the risk to users who open crafted packets in Wireshark. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid opening untrusted or malformed BT-DHT protocol traffic in affected Wireshark versions. Monitor Wireshark Foundation communications for updates and apply patches promptly once available.
CVE-2026-5408: CWE-674: Uncontrolled Recursion in Wireshark Foundation Wireshark
Description
BT-DHT protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-5408) affects Wireshark Foundation's Wireshark software, specifically the BT-DHT protocol dissector. Due to uncontrolled recursion (CWE-674), certain malformed inputs can cause the dissector to crash, leading to denial of service. The affected versions are 4.6.0 through 4.6.4 and 4.4.0 through 4.4.14. The CVSS 3.1 base score is 5.5, reflecting medium severity with local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and impact limited to availability.
Potential Impact
Successful exploitation results in a denial of service by crashing the Wireshark application. There is no impact on confidentiality or integrity. The attack requires local access and user interaction, limiting the risk to users who open crafted packets in Wireshark. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid opening untrusted or malformed BT-DHT protocol traffic in affected Wireshark versions. Monitor Wireshark Foundation communications for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-04-02T06:33:41.677Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f2f4e6cbff5d8610970abb
Added to database: 4/30/2026, 6:21:26 AM
Last enriched: 4/30/2026, 6:51:38 AM
Last updated: 4/30/2026, 3:11:02 PM
Views: 11
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