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Home WiresharkCVE-2021-4190

High

7.5CVSS

CVE-2021-4190

Vendor:Wireshark

Published: 30 Dec 2021

Updated 5mo ago

Generated remediation guidance and an executive summary. No account required.

Description

Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-834

Metadata

Primary Vendor: WIRESHARK
Published: 12/30/2021
Last Modified: 11/3/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

wireshark : wiresharkwireshark : wiresharkfedoraproject : fedorafedoraproject : fedora

Remediation Guidance

Executive Summary

View on NIST NVD

Fix CVE-2021-4190 - HIGH wireshark wireshark | CVEDatabase.com

Related reading

Use CWE-834, Wireshark vendor hub and Wireshark product page to widen CVE-2021-4190 into its surrounding weakness, vendor, and product context.

Compare it with CVE-2025-13499, CVE-2026-3203 and CVE-2026-0961 for nearby disclosures in the same product family.