Security readout for executives and security teams
This flaw lets an unauthenticated attacker who can reach vCenter Server on HTTPS potentially run commands on the vCenter host. Because vCenter controls VMware infrastructure, compromise can threaten many dependent systems, not just one server. Organizations running affected VMware vCenter Server 7.x, 6.7, or 6.5, or VMware Cloud Foundation 4.x or 3.x, are exposed when vCenter port 443 is reachable by an attacker. Treat this as urgent. A vulnerable vCenter Server can become a high-impact entry point into virtual infrastructure, and CISA confirms exploitation in the wild. Mitigation focus: Upgrade vCenter Server to 7.0 U2b, 6.7 U3n, 6.5 U3p, or later.; Upgrade VMware Cloud Foundation to 4.2.1, 3.10.2.1, or later.; Restrict network access to vCenter port 443 to trusted administration paths..
Michael Williams reviewed this cited source version on .
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CWE-20: Exact CWE lookup
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Open ATT&CK lookupCWE-470: Exact CWE lookup
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Open ATT&CK lookupCWE-918: Information exposure and cloud metadata lookup
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Open ATT&CK lookupExecution behavior lookup
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Open ATT&CK lookupCVE-2021-21985 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.vmware.com/security/advisories/VMSA-2021-0010.htmlCVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21985CVE reference · government-resource
Products and packages named in the record
CWE details
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