CVE-2026-5299: Uncontrolled Recursion in Wireshark
Published Apr 30, 2026
·Updated
ICMPv6 PvD protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Affected Software
3 affected components
Wireshark Wireshark>=4.6.0<=4.6.4, >=4.4.0<=4.4.14
Wireshark Wireshark>=4.4.0<=4.4.14
Wireshark Wireshark>=4.6.0<=4.6.4
Remediation
Information
Upgrade to version 4.6.5 or above
Event History
Apr 30, 2026
CVE Published
via MITRE·05:39 AM
Data Sourced
via MITRE·05:39 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·07:16 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-5299?
CVE-2026-5299 is classified as a denial of service vulnerability that can cause crashes in Wireshark.
2
What versions of Wireshark are affected by CVE-2026-5299?
CVE-2026-5299 affects Wireshark versions 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14.
3
How do I fix CVE-2026-5299?
To mitigate CVE-2026-5299, update to the latest version of Wireshark that is not affected by this vulnerability.
4
What causes CVE-2026-5299?
CVE-2026-5299 is caused by uncontrolled recursion in the ICMPv6 PvD protocol dissector.
5
Who is responsible for addressing CVE-2026-5299?
The maintainers of Wireshark are responsible for addressing CVE-2026-5299 through software updates.