CVE-2021-21972
Summary
| CVE | CVE-2021-21972 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-02-24 17:15:00 UTC |
| Updated | 2023-08-08 14:21:00 UTC |
| Description | The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2). |
Risk And Classification
EPSS: 0.938210000 probability, percentile 0.998610000 (date 2026-04-02)
CISA KEV: Listed on 2021-11-03; due 2021-11-17; ransomware use Known
Problem Types: CWE-22
CISA Known Exploited Vulnerability
| Vendor | VMware |
|---|---|
| Product | vCenter Server |
| Name | VMware vCenter Server Remote Code Execution Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://nvd.nist.gov/vuln/detail/CVE-2021-21972 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Vmware | Cloud Foundation | All | All | All | All |
| Application | Vmware | Cloud Foundation | All | All | All | All |
| Application | Vmware | Vcenter Server | 6.5 | - | All | All |
| Application | Vmware | Vcenter Server | 6.5 | a | All | All |
| Application | Vmware | Vcenter Server | 6.5 | b | All | All |
| Application | Vmware | Vcenter Server | 6.5 | c | All | All |
| Application | Vmware | Vcenter Server | 6.5 | d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | e | All | All |
| Application | Vmware | Vcenter Server | 6.5 | f | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u1d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u1e | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u1g | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2 | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2b | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2c | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2g | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u3 | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u3d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u3f | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u3k | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update1d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update1e | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update1g | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update2 | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update2b | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update2c | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update2d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update2g | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update3 | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update3d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update3f | All | All |
| Application | Vmware | Vcenter Server | 6.5 | update3k | All | All |
| Application | Vmware | Vcenter Server | 6.7 | - | All | All |
| Application | Vmware | Vcenter Server | 6.7 | a | All | All |
| Application | Vmware | Vcenter Server | 6.7 | b | All | All |
| Application | Vmware | Vcenter Server | 6.7 | d | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u1 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u1b | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u2 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u2a | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u2c | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3a | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3b | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3f | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3g | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3j | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update1 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update1b | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update2 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update2a | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update2c | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update3 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update3a | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update3b | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update3f | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update3g | All | All |
| Application | Vmware | Vcenter Server | 6.7 | update3j | All | All |
| Application | Vmware | Vcenter Server | 7.0 | - | All | All |
| Application | Vmware | Vcenter Server | 7.0 | a | All | All |
| Application | Vmware | Vcenter Server | 7.0 | b | All | All |
| Application | Vmware | Vcenter Server | 7.0 | c | All | All |
| Application | Vmware | Vcenter Server | 7.0 | d | All | All |
| Application | Vmware | Vcenter Server | 7.0 | u1 | All | All |
| Application | Vmware | Vcenter Server | 7.0 | u1a | All | All |
| Application | Vmware | Vcenter Server | 7.0 | update1 | All | All |
| Application | Vmware | Vcenter Server | 7.0 | update1a | All | All |
| Application | Vmware | Vcenter Server | 6.5 | - | All | All |
| Application | Vmware | Vcenter Server | 6.5 | a | All | All |
| Application | Vmware | Vcenter Server | 6.5 | b | All | All |
| Application | Vmware | Vcenter Server | 6.5 | c | All | All |
| Application | Vmware | Vcenter Server | 6.5 | d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | e | All | All |
| Application | Vmware | Vcenter Server | 6.5 | f | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u1d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u1e | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u1g | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2 | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2b | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2c | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u2g | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u3 | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u3d | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u3f | All | All |
| Application | Vmware | Vcenter Server | 6.5 | u3k | All | All |
| Application | Vmware | Vcenter Server | 6.7 | - | All | All |
| Application | Vmware | Vcenter Server | 6.7 | a | All | All |
| Application | Vmware | Vcenter Server | 6.7 | b | All | All |
| Application | Vmware | Vcenter Server | 6.7 | d | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u1 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u1b | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u2 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u2a | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u2c | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3 | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3a | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3b | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3f | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3g | All | All |
| Application | Vmware | Vcenter Server | 6.7 | u3j | All | All |
| Application | Vmware | Vcenter Server | 7.0 | - | All | All |
| Application | Vmware | Vcenter Server | 7.0 | a | All | All |
| Application | Vmware | Vcenter Server | 7.0 | b | All | All |
| Application | Vmware | Vcenter Server | 7.0 | c | All | All |
| Application | Vmware | Vcenter Server | 7.0 | d | All | All |
| Application | Vmware | Vcenter Server | 7.0 | u1 | All | All |
| Application | Vmware | Vcenter Server | 7.0 | u1a | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| VMware vCenter 6.5 / 6.7 / 7.0 Remote Code Execution ≈ Packet Storm | MISC | packetstormsecurity.com | |
| VMSA-2021-0002 | CONFIRM | www.vmware.com | Vendor Advisory |
| VMware vCenter Server File Upload / Remote Code Execution ≈ Packet Storm | MISC | packetstormsecurity.com | |
| VMware vCenter Server 7.0 Arbitrary File Upload ≈ Packet Storm | MISC | packetstormsecurity.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.