Denial of Service Vulnerability in Wireshark from The Wireshark Foundation
CVE-2026-0959

5.3MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
14 January 2026

What is CVE-2026-0959?

A vulnerability in Wireshark related to the IEEE 802.11 protocol dissector can lead to a denial of service condition. When processing crafted network packets, specifically in Wireshark versions 4.6.0 through 4.6.2 and 4.4.0 through 4.4.12, an attacker could exploit this issue to crash the application. Users are advised to update to the latest version to mitigate this risk.

Affected Version(s)

Wireshark 4.6.0 < 4.6.3

Wireshark 4.4.0 < 4.4.13

References

https://www.wireshark.org/security/wnpa-sec-2026-02.html
https://gitlab.com/wireshark/wireshark/-/issues/20939
issue-trackingpermissions-required

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

OSS-Fuzz
.