CVE-2021-39921

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

No affected versions have been published.

Timeline

Published: Nov 19, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

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