CVE-2021-22207
wireshark: MS-WSP dissector excessive memory consumption
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 21, 2021
Updated · February 25, 2026
Description
A flaw was found in wireshark. A memory leak in the MS-WSP dissector allows an attacker to crash an application which uses wireshark due to excessive memory allocation. The attacker can trigger the flaw by injecting special packets onto the wire or by convincing a victim user into opening a malformed packet trace file. The highest threat from this vulnerability is to application availability.
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-770 · Allocation of Resources Without Limits or Throttling