Denial of Service Vulnerability in Wireshark by the Wireshark Foundation
CVE-2026-15170

5.5MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
8 July 2026

What is CVE-2026-15170?

A vulnerability exists in Wireshark versions 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 due to the Z39.50 protocol dissector, which can lead to a crash of the application. This can result in a denial of service, affecting the usability of the software in network analysis tasks. Users are encouraged to update to the latest versions to mitigate this issue.

Affected Version(s)

Wireshark 4.6.0 < 4.6.7

Wireshark 4.4.0 < 4.4.17

References

https://www.wireshark.org/security/wnpa-sec-2026-58.html
https://gitlab.com/wireshark/wireshark/-/work_items/21397

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

Credit

Claude and Ada Logics
.