CVE-2021-219729.8CriticalCWE-22

CVE-2021-21972: VMware vSphere Client (HTML5) - Remote Code Execution

VMware · VMware vCenter Server

Affected: VMware vCenter Server · Exploitation: in CISA KEV since 3 Nov 2021

Known ransomware use

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

ExploitationIn CISA KEV

In CISA KEVCISA KEV catalogue3 Nov 2021
Exploited (reported): not seen
Scanning observed: not seen
Proof of concept public: not seen
Not established: not seen

99.9%probability of exploitation in the next 30 days

99th percentile

050100

Higher than 99% of scored CVEs

9.8CriticalCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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).

Affected products2

From the CVE record. A product or version that is not listed is unknown, not unaffected.

VMware vCenter Server7.x before 7.0 U1c; 6.7 before 6.7 U3l; 6.5 before 6.5 U3n
VMware Cloud Foundation4.x before 4.2; 3.x before 3.10.1.2

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.
CISA KEV: Listed since 3 Nov 2021 · known ransomware use · catalogue entry
Public check: VMware vSphere Client (HTML5) - Remote Code Execution · nuclei template in projectdiscovery/nuclei-templates
Weakness: Path Traversal · File and Path Handling
Vendor: VMware
Published: February 2021
Band: Exploited in the wild, February 2021

What changed

5 Nov
CISA’s KEV entry now notes known ransomware use CISA
3 Nov 2021
CISA added it to the KEV catalogue CISA

CoverageNo articles yet

No CyberSIXT article names CVE-2021-21972 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.