CVE-2021-22017

CVE Database · CVE-2021-22017

CVE-2021-22017

· MEDIUMAnalyzed

CVSS v3.1

5.3

EPSS

46.72%

Published

Sep 23, 2021

Modified

Oct 30, 2025

CISA Known Exploited Vulnerability

Added: 2022-01-10 · Due: 2022-01-24

Apply updates per vendor instructions.

Public PoC / Exploit (2)

All weaponized →

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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 Vector

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

Affected Products (1)

vmware · vcenter_servervulnerable

References (3)

https://www.vmware.com/security/advisories/VMSA-2021-0020.html

PatchVendor Advisory

https://www.vmware.com/security/advisories/VMSA-2021-0020.html

PatchVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22017

US Government Resource

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