Denial of Service Vulnerability in Wireshark Bluetooth Attribute Protocol
CVE-2026-76882

4.7MEDIUM

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
19 August 2026

What is CVE-2026-76882?

A vulnerability in the Bluetooth Attribute Protocol dissector within Wireshark versions 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 can lead to a denial of service. This issue arises when the dissector encounters certain inputs, causing it to crash unexpectedly. As a result, users may experience disruptions in network analysis and monitoring tasks, highlighting the importance of using updated versions to mitigate this risk.

Affected Version(s)

Wireshark 4.6.0 < 4.6.8

Wireshark 4.4.0 < 4.4.18

References

https://www.wireshark.org/security/wnpa-sec-2026-73.html
https://gitlab.com/wireshark/wireshark/-/work_items/21424

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yazan Balawneh - CyStack Security Team
.