Vulnerability · Published Feb 16, 2022 · Assigned by vmware
CVE-2021-22043
High 7.5
In plain English
A high-severity security flaw in VMware ESXi and VMware Cloud Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 64% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.1%top 35.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | VMware ESXi and VMware Cloud Foundation | VMware ESXi(7.0 U3 before ESXi70U3c-19193900, 7.0 U2 before ESXi70U2e-19290878 and 7.0 U1 before ESXi70U1e-19324898) and VMware Cloud Foundation 4.x before 4.4 |
References
- https://www.vmware.com/security/advisories/VMSA-2022-0004.html x_refsource_MISC