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CVE-2021-21985

Published: May 26, 2021Modified: Oct 30, 2025CISA KEV

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9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

Description

The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. 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.

Affected (53)

2 products
Vcenter Server
Cloud Foundation
Configuration A
51 vulnerable
Vulnerable SoftwareAffected Versions
Vmware
Version 6.5
Version 6.5 a
Version 6.5 b
Version 6.5 c
Version 6.5 d
Version 6.5 e
Version 6.5 f
Version 6.5 update1
Version 6.5 update1b
Version 6.5 update1c
Version 6.5 update1d
Version 6.5 update1e
Version 6.5 update1g
Version 6.5 update2
Version 6.5 update2b
Version 6.5 update2c
Version 6.5 update2d
Version 6.5 update2g
Version 6.5 update3
Version 6.5 update3d
Version 6.5 update3f
Version 6.5 update3k
Version 6.5 update3n
Version 6.7
Version 6.7 a
Version 6.7 b
Version 6.7 d
Version 6.7 update1
Version 6.7 update1b
Version 6.7 update2
Version 6.7 update2a
Version 6.7 update2c
Version 6.7 update3
Version 6.7 update3a
Version 6.7 update3b
Version 6.7 update3f
Version 6.7 update3g
Version 6.7 update3j
Version 6.7 update3l
Version 6.7 update3m
Version 7.0
Version 7.0 a
Version 7.0 b
Version 7.0 c
Version 7.0 d
Version 7.0 update1
Version 7.0 update1a
Version 7.0 update1c
Version 7.0 update1d
Version 7.0 update2
Version 7.0 update2a
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Vmware
From 3.0 to 3.10.2.1
From 4.0 to 4.2.1

References (7)

Source: security@vmware.com
Third Party AdvisoryVDB Entry
Source: security@vmware.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

Timeline

No history available yet.