Denial of Service Vulnerability in Wireshark by the Vendor
CVE-2026-6519

5.5MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
30 April 2026

What is CVE-2026-6519?

A vulnerability in the MBIM protocol dissector of Wireshark versions 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows attackers to exploit an infinite loop, which can lead to a denial of service. This issue may cause the application to become unresponsive, impairing network analysis capabilities.

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-2026-41.html
https://gitlab.com/wireshark/wireshark/-/work_items/21184

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
.