Is CVE-2021-22017 actively exploited?

CVE-2021-22017 has no public evidence of in-the-wild exploitation as of 2025-10-30.

What is the CVSS score for CVE-2021-22017?

CVE-2021-22017 has a CVSS score of 5.3 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

How do I patch CVE-2021-22017?

Patch guidance is available from vmware security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-22017.

Which products are affected by CVE-2021-22017?

1 product: vmware vcenter server.

CVE-2021-22017 - remediation guidance & executive summary

Description

Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to bypass proxy leading to internal endpoints being accessed.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none
Weaknesses: NVD-CWE-noinfo

Metadata

Primary Vendor: VMWARE
Published: 9/23/2021
Last Modified: 10/30/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-22017

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary