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I. Basic Information for CVE-2021-21994
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
SFCB (Small Footprint CIM Broker) as used in ESXi has an authentication bypass vulnerability. A malicious actor with network access to port 5989 on ESXi may exploit this issue to bypass SFCB authentication by sending a specially crafted request.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
VMware ESXi 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vmware VMware ESXi是美国威睿（Vmware）公司的一套可直接安装在物理服务器上的服务器虚拟化平台。 VMware ESXi 中存在授权问题漏洞，该漏洞源于产品的 SFCB 的鉴权功能存在漏洞，攻击者可通过对 5989 端口发送特殊的请求来绕过SFCB认证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
-VMware ESXi and VMware Cloud Foundation VMware ESXi(7.0 before ESXi70U2-17630552, 6.7 before ESXi670-202103101-SG, 6.5 before ESXi650-202107401-SG) and VMware Cloud Foundation (4.x, 3.x before 3.10.2) -
II. Public POCs for CVE-2021-21994
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III. Intelligence Information for CVE-2021-21994
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IV. Related Vulnerabilities
Same product: VMware ESXi and VMware Cloud Foundation
Same vendor: n/a
V. Comments for CVE-2021-21994

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