CVE-2021-22043

Published: Feb 16, 2022Modified: Jun 17, 2026

7.5

Vector

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

Exploitability: 1.6 / Impact: 5.9

Source: NVD

Description

VMware ESXi contains a TOCTOU (Time-of-check Time-of-use) vulnerability that exists in the way temporary files are handled. A malicious actor with access to settingsd, may exploit this issue to escalate their privileges by writing arbitrary files.

Affected (4)

Products: Vmware: Esxi, Fusion

Vmware

2 products

Esxi

Fusion

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Vmware Esxi	Version 7.0 update_1
Vmware Esxi	Version 7.0 update_2
Vmware Esxi	Version 7.0 update_3
Vmware Fusion	Before 4.4

Related CWEs

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

References (2)

https://www.vmware.com/security/advisories/VMSA-2022-0004.html

Source: security@vmware.com

PatchVendor Advisory

https://www.vmware.com/security/advisories/VMSA-2022-0004.html

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.