CVE-2021-22005
The vCenter Server contains an arbitrary file upload vulnerability in the Analytics service. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to execute code on vCenter Server by uploading a specially crafted file.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Base score: 9.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 100%
- Percentile among all scored CVEs: 100
- Score date: 9/29/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
CISA KEV — actively exploited
- Added to catalog: 11/3/2021
- Remediation due date: 11/17/2021
- Known ransomware use: Known
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1190Exploit Public-Facing Applicationinitial access85 % - Primary impact
T1059.001PowerShellexecution90 % - Secondary impact
T1005Data from Local Systemcollection75 %
Vulnerabilidad de carga arbitraria en servicio expuesto (puerto 443) sin autenticación previa que permite ejecución remota de código en vCenter Server, confirmada como explotada activamente por ransomware.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (2)
CWEs
- CWE-22
- CWE-22
References
- http://packetstormsecurity.com/files/164439/VMware-vCenter-Server-Analytics-CEIP-Service-File-Upload.html
- https://www.vmware.com/security/advisories/VMSA-2021-0020.html
- http://packetstormsecurity.com/files/164439/VMware-vCenter-Server-Analytics-CEIP-Service-File-Upload.html
- https://www.vmware.com/security/advisories/VMSA-2021-0020.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22005
Raw JSON (NVD)
Show
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