CVE-2021-4182 - CVE House
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Status published High CVE-2021-4182

Crash in the RFC 7468 dissector in Wireshark 3.6.0 and...

Vulnerability Description

Crash in the RFC 7468 dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

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References

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Affected Vendor

Wireshark Foundation

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Affected Software

Wireshark
Vulnerable Versions:
=3.6.0, >=3.4.0, <3.4.10

Timeline

Official Publish: December 30th, 2021
Last Modified: November 3rd, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.