CVE-2021-39920

PoC —

CVSS 3.1

7.5 high

EPSS

3%p88

Published

Nov 18, 2021 (Nov 18, 2021)

Modified

Jun 17, 2026

Description

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

Vendors: wireshark fedoraproject
Products: wireshark, fedora
Weakness: CWE-476
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (3.3%)

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