CVE-2021-22043
HIGHVMware ESXi - Privilege Escalation via TOCTOU Race Condition in Temporary File Handling
Title source: llmDescription
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.
References (1)
Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://www.vmware.com/security/advisories/VMSA-2022-0004.html
Scores
CVSS v3
7.5
EPSS
0.0036
EPSS Percentile
58.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-367
Status
published
Products (2)
vmware/esxi
7.0 update_1 (3 CPE variants)
vmware/fusion
< 4.4
Published
Feb 16, 2022
Tracked Since
Feb 18, 2026