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CVE-2026-5654

wireshark: Wireshark: Denial of service vulnerability in AMR-NB codec

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Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.1

Review impact separately from score.

Published · April 30, 2026

Updated · July 3, 2026

Description

A flaw was found in Wireshark. This vulnerability allows a remote attacker to cause the application to crash by exploiting an issue within the AMR-NB codec. Successful exploitation leads to a denial of service, which prevents Wireshark from functioning and analyzing network traffic.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

To mitigate this issue, users should avoid opening or analyzing untrusted network capture files containing AMR-NB codec data with Wireshark. Limiting the sources of network captures to trusted environments can reduce exposure.

CVSS / CWE

CVSS 3.1 · 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-237 · Improper Handling of Structural Elements