Memory Exhaustion Vulnerability in Wireshark USB HID Protocol Dissector
CVE-2026-3201

4.7MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
25 February 2026

What is CVE-2026-3201?

A memory exhaustion vulnerability exists within the USB HID protocol dissector of Wireshark, affecting versions 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13. This flaw can lead to denial of service, where the application may become unresponsive due to excessive memory consumption. Attackers can exploit this weakness by providing crafted USB HID protocol traffic, resulting in resource depletion. Users are advised to update to a patched version and avoid processing untrusted data.

Affected Version(s)

Wireshark 4.6.0 < 4.6.4

Wireshark 4.4.0 < 4.4.14

References

https://www.wireshark.org/security/wnpa-sec-2026-05.html
https://gitlab.com/wireshark/wireshark/-/issues/20972
issue-trackingpermissions-required

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

齐柯宇 (Qi Kery)
.