CVE-2021-4184

wireshark: BitTorrent DHT dissector infinite loop

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · December 29, 2021

Updated · November 21, 2025

Description

An infinite-loop flaw was found in Wireshark's DHT dissector module. This flaw allows an attacker with local network access to pass specially crafted capture files, causing an application to halt, crash or go into an infinite loop.

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

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')