Denial of Service Vulnerability in Wireshark Product by Wireshark
CVE-2026-0961

5.5MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
14 January 2026

What is CVE-2026-0961?

A Denial of Service vulnerability exists in the Wireshark product due to a crash caused by the BLF file parser. This affects versions 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12, making it possible for an attacker to cause the application to become unresponsive by leveraging specially crafted BLF files.

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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-2026-01.html
https://gitlab.com/wireshark/wireshark/-/issues/20880
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CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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