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.
Published 2022-02-16 17:15:11
Updated 2022-02-24 19:51:05
Source VMware
View at NVD,   CVE.org

Threat overview for CVE-2021-22043

Top countries where our scanners detected CVE-2021-22043
Top open port discovered on systems with this issue 443
IPs affected by CVE-2021-22043 4,295
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2021-22043!
*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-2021-22043

Probability of exploitation activity in the next 30 days: 0.10%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 41 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-22043

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
6.0
MEDIUM AV:N/AC:M/Au:S/C:P/I:P/A:P
6.8
6.4
NIST
7.5
HIGH CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1.6
5.9
NIST

CWE ids for CVE-2021-22043

  • 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.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-22043

Products affected by CVE-2021-22043

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