Denial of Service Vulnerability in Wireshark DCT2000 Protocol Dissector
CVE-2026-15174

5.5MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
8 July 2026

What is CVE-2026-15174?

The Wireshark network protocol analyzer has a vulnerability in its DCT2000 protocol dissector. This issue can lead to a crash when processing specific inputs, resulting in a denial of service for users. Affected versions include Wireshark 4.6.0 through 4.6.6 and 4.4.0 through 4.4.16. Users are advised to upgrade to the latest version to mitigate this risk. For more details, refer to the official security advisory.

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-2026-52.html
https://gitlab.com/wireshark/wireshark/-/work_items/21270

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

Michael Bommarito
.