CVE-2021-4186

Published: Dec 30, 2021

Modified: Nov 3, 2025

PUBLISHED

CVSS v3.1

6.3

MEDIUM

Description

Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file

Vendor	Product	Versions
Wireshark Foundation	Wireshark	affected `>=3.4.0, <3.4.10`

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

https://www.wireshark.org/security/wnpa-sec-2021-16.html

https://gitlab.com/wireshark/wireshark/-/issues/17737

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4186.json

FEDORA-2022-a3d70b50f0

vendor-advisory

FEDORA-2022-1daf93c51d

vendor-advisory

FEDORA-2022-30411cb3c4

vendor-advisory

FEDORA-2022-48b86d586f

vendor-advisory

GLSA-202210-04

vendor-advisory

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CVE-2021-4186

Description

Affected Products

CVSS v3.1 Details

References