Wireshark up to 4.4.14/4.6.4 ICMPv6 PvD Protocol Dissector recursion

Summaryinfo

A vulnerability has been found in Wireshark up to 4.4.14/4.6.4 and classified as problematic. Affected by this issue is some unknown functionality of the component ICMPv6 PvD Protocol Dissector. The manipulation leads to recursion. This vulnerability is documented as CVE-2026-5299. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Wireshark up to 4.4.14/4.6.4. It has been rated as problematic. This issue affects an unknown part of the component ICMPv6 PvD Protocol Dissector. The manipulation with an unknown input leads to a recursion vulnerability. Using CWE to declare the problem leads to CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. Impacted is availability. The summary by CVE is:

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

The weakness was released by Brendan Coles as 21077. It is possible to read the advisory at wireshark.org. The identification of this vulnerability is CVE-2026-5299 since 04/01/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 313009 (Debian dsa-6249 : libwireshark-data - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.4.15 or 4.6.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (313009), EUVD (EUVD-2026-26315) and CERT Bund (WID-SEC-2026-1311). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Open Source Wireshark

Productinfo

Type

• Packet Analyzer Software

Name

• Wireshark

Version

• 4.4.0
• 4.4.1
• 4.4.2
• 4.4.3
• 4.4.4
• 4.4.5
• 4.4.6
• 4.4.7
• 4.4.8
• 4.4.9
• 4.4.10
• 4.4.11
• 4.4.12
• 4.4.13
• 4.4.14
• 4.6.0
• 4.6.1
• 4.6.2
• 4.6.3
• 4.6.4

License

• open-source

Website

• Product: https://www.wireshark.org/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion