CVE-2026-0959

low-risk
Published 2026-01-14

IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of service

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Wireshark

References (2)

Issue Tracking https://gitlab.com/wireshark/wireshark/-/issues/20939
Vendor Advisory https://www.wireshark.org/security/wnpa-sec-2026-02.html
22
/ 100
low-risk
Severity 17/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal