CVE-2021-22049

9.8 criticalEPSS 1.7%

Critical (9.8) in vmware vcenter server. EPSS 1.7% chance of exploitation in the next 30 days.

The vSphere Web Client (FLEX/Flash) contains an SSRF (Server Side Request Forgery) vulnerability in the vSAN Web Client (vSAN UI) plug-in. A malicious actor with network access to port 443 on vCenter Server may exploit this issue by accessing a URL request outside of vCenter Server or accessing an internal service.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWE: CWE-918
Published: 2021-11-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

vmware:vcenter_server

References

https://www.vmware.com/security/advisories/VMSA-2021-0027.html
https://www.vmware.com/security/advisories/VMSA-2021-0027.html

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