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Vulnerability Intelligence

CVE-2026-0959

MEDIUM5.3

Out-of-bounds Write in Wireshark

Published Jan 14, 2026

Modified 2 days ago

Fix available

Details

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

Affected Packages

Wireshark

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1809) / Server 2019Windows 10 (1903)Windows 10 (1909)

Fixed in:

4.4.134.6.3

References

WEBhttps://gitlab.com/wireshark/wireshark/-/issues/20939 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2026-0959 WEBhttps://www.wireshark.org/security/wnpa-sec-2026-02.html

CVSS Analysis

CVSS v3.1

5.3

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.3/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness Type (CWE)

Memory Safety

Out-of-bounds Write

Ecosystems(17)

Windows 10 (1507)Windows 10 (1607) / Server 2016 Windows 10 (1809) / Server 2019 Windows 10 (1903)Windows 10 (1909)

Timeline

PublishedJan 14, 2026

ModifiedJan 14, 2026

CVE-2026-0959 | Mondoo Vulnerability Intelligence