SBC Codec Crash Vulnerability in Wireshark by The Wireshark Foundation
CVE-2026-5403

7.8HIGH

Key Information:

Vendor

Wireshark
Status
Wireshark
Vendor
CVE Published:
30 April 2026

What is CVE-2026-5403?

A vulnerability in Wireshark versions 4.6.0 through 4.6.4 and 4.4.0 through 4.4.14 related to the SBC codec can lead to a denial of service condition. Attackers may exploit this flaw to cause the application to crash, and potentially execute arbitrary code. Users of affected versions should consider updating to a more secure version to mitigate the risk associated with this vulnerability.

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-2026-16.html
https://gitlab.com/wireshark/wireshark/-/issues/21103
issue-trackingpermissions-required

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Duc Anh Nguyen
.