CVEvulnerability

CVE-2021-22017

5.3 MEDIUM Known exploited Published 2021-09-23 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

VMware vCenter Server Improper Access Control — VMware vCenter Server

Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization.

Added to KEV
2022-01-10
Remediation due
2022-01-24
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-22017
Status
Analyzed
Published
2021-09-23
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N

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.

Affected configurations

• vmware vcenter server 6.7

References