CVE-2021-22041

VMware ESXi, Workstation, and Fusion contain a double-fetch vulnerability in the UHCI 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 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-22041 is rated Low Risk (36.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.11%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-22041

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-05 0.46% 0.11% -0.35%
2 2026-05-23 0.45% 0.46% +0.01%
3 2026-05-16 — 0.45% —

Full EPSS history (38 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-22041

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 5.9 [email protected]
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2021-22041

Affected software / configurations for CVE-2021-22041

Vendor Product Version Raw CPE
vmware cloud_foundation >= 3.0, < 3.11 cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*
vmware cloud_foundation >= 4.0, < 4.4 cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*
vmware fusion >= 12.0.0, < 12.2.1 cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
vmware fusion — cpe:2.3:a:vmware:fusion:-:*:*:*:*:*:*:*
vmware workstation >= 16.0.0, < 16.2.1 cpe:2.3:a:vmware:workstation:*:*:*:*:*:*:*:*
vmware esxi 6.5 cpe:2.3:o:vmware:esxi:6.5:650-202202401:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:-:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201806001:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201807001:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201808001:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810001:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810101:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810102:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810103:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810201:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810202:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810203:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810204:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810205:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810206:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810207:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810208:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810209:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810210:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810211:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810212:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810213:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810214:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810215:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810216:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810217:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810218:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810219:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810220:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810221:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810222:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810223:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810224:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810225:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810226:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810227:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810228:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810229:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810230:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810231:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810232:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810233:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201810234:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201811001:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201901001:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201901401:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201901402:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201901403:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201903001:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904001:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904201:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904201-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904202:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904202-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904203:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904203-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904204:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904204-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904205:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904205-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904206:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904206-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904207:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904207-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904208:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904208-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904209:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904209-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904210:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904210-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904211:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904211-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904212:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904212-ug:*:*:*:*:*:*
vmware esxi 6.7 cpe:2.3:o:vmware:esxi:6.7:670-201904213:*:*:*:*:*:*

References for CVE-2021-22041

cvelogic Threat Intelligence