CVE-2021-39923

HIGH

Wireshark < 3.2.17 - Denial of Service

Title source: rule
STIX 2.1

Description

Large loop in the PNRP 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

Scores

CVSS v3 7.5
EPSS 0.0225
EPSS Percentile 84.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-834
Status published
Products (4)
debian/debian_linux 10.0
debian/debian_linux 11.0
debian/debian_linux 9.0
wireshark/wireshark 3.2.0 - 3.2.17
Published Nov 19, 2021
Tracked Since Feb 18, 2026