Denial of Service Vulnerability in Wireshark by the Wireshark Developer Team
CVE-2026-6528

5.5MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
30 April 2026

What is CVE-2026-6528?

A vulnerability exists in the TLS protocol dissector of Wireshark versions 4.6.0 to 4.6.4 that can lead to an infinite loop condition. This issue may result in a denial of service, disrupting normal operations and potentially allowing an attacker to render the application unresponsive. Users are advised to upgrade to a patched version to mitigate this risk.

Affected Version(s)

Wireshark 4.6.0 < 4.6.5

References

https://www.wireshark.org/security/wnpa-sec-2026-33.html
https://gitlab.com/wireshark/wireshark/-/work_items/21151
https://gitlab.com/wireshark/wireshark/-/work_items/21147

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

Alexandre de Oliveira
.