Denial of Service Vulnerability in Wireshark BEEP Protocol Dissector
CVE-2026-6538

5.5MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
30 April 2026

What is CVE-2026-6538?

A Denial of Service vulnerability has been identified in the BEEP protocol dissector component of Wireshark versions 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14. This issue can lead to a crash of the application, potentially disrupting network monitoring and analysis capabilities. Users of affected versions should upgrade to the latest release to mitigate the risk of exploitation.

Affected Version(s)

Wireshark 4.6.0 < 4.6.5

Wireshark 4.4.0 < 4.4.15

References

https://www.wireshark.org/security/wnpa-sec-2026-23.html
https://gitlab.com/wireshark/wireshark/-/issues/21120
issue-trackingpermissions-required

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

Sharon Brizinov
.