CVE-2026-5299: CWE-674: Uncontrolled Recursion in Wireshark Foundation Wireshark
A vulnerability in Wireshark versions 4.4.0 to 4.4.14 and 4.6.0 to 4.6.4 in the ICMPv6 PvD protocol dissector can cause a denial of service due to uncontrolled recursion leading to a crash. This issue is identified as CWE-674. The vulnerability has a medium severity with a CVSS score of 5.5.
AI Analysis
Technical Summary
CVE-2026-5299 is an uncontrolled recursion vulnerability in the ICMPv6 PvD protocol dissector of Wireshark versions 4.4.0 through 4.4.14 and 4.6.0 through 4.6.4. This flaw allows crafted packets to cause the application to crash, resulting in a denial of service condition. The vulnerability is classified under CWE-674 (Uncontrolled Recursion). There is no vendor advisory or patch information provided, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation causes a denial of service by crashing the Wireshark application when processing malicious ICMPv6 PvD packets. There is no indication of confidentiality or integrity impact. The attack vector requires local access (AV:L) and user interaction (UI:R).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid analyzing untrusted ICMPv6 PvD traffic with affected Wireshark versions or use alternative tools.
CVE-2026-5299: CWE-674: Uncontrolled Recursion in Wireshark Foundation Wireshark
Description
A vulnerability in Wireshark versions 4.4.0 to 4.4.14 and 4.6.0 to 4.6.4 in the ICMPv6 PvD protocol dissector can cause a denial of service due to uncontrolled recursion leading to a crash. This issue is identified as CWE-674. The vulnerability has a medium severity with a CVSS score of 5.5.
CVSS v3.1
Score 5.5medium
Affected software
pkg:github/wireshark/wiresharkRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-5299 is an uncontrolled recursion vulnerability in the ICMPv6 PvD protocol dissector of Wireshark versions 4.4.0 through 4.4.14 and 4.6.0 through 4.6.4. This flaw allows crafted packets to cause the application to crash, resulting in a denial of service condition. The vulnerability is classified under CWE-674 (Uncontrolled Recursion). There is no vendor advisory or patch information provided, and no known exploits in the wild have been reported.
Potential Impact
Successful exploitation causes a denial of service by crashing the Wireshark application when processing malicious ICMPv6 PvD packets. There is no indication of confidentiality or integrity impact. The attack vector requires local access (AV:L) and user interaction (UI:R).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid analyzing untrusted ICMPv6 PvD traffic with affected Wireshark versions or use alternative tools.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-04-01T05:33:12.299Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f2f4e6cbff5d8610970aa7
Added to database: 04/30/2026, 06:21:26 UTC
Last enriched: 06/19/2026, 19:28:33 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 88
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