CVE-2021-39928
wireshark: IEEE 802.11 dissector crash
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Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 17, 2021
Updated · November 22, 2025
Description
A flaw was found in Wireshark. A process failure on crafted or malformed IEEE 802.11 input can cause a denial of service via packet injection or a crafted capture file.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference