Vulnerability Details : CVE-2021-22040

VMware ESXi, Workstation, and Fusion contain a use-after-free vulnerability in the XHCI USB controller. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host.
Published 2022-02-16 17:15:10
Updated 2022-02-24 19:43:47
Source VMware
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionExecute code

Products affected by CVE-2021-22040

Threat overview for CVE-2021-22040

Top countries where our scanners detected CVE-2021-22040
Top open port discovered on systems with this issue 443
IPs affected by CVE-2021-22040 72,952
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2021-22040!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2021-22040

EPSS FAQ
1.46%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-22040

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.6
 MEDIUM AV:L/AC:L/Au:N/C:P/I:P/A:P
3.9
6.4
 NIST
6.7
 MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
0.8
5.9
 NIST

CWE ids for CVE-2021-22040

  • The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-22040

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