AEGLIX vulnerability intelligence
CVE-2021-21973
MEDIUM · CVSS 5.3 · Analyzed
Published: 2021-02-24 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
The vSphere Client (HTML5) contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue by sending a POST request to vCenter Server plugin leading to information disclosure. 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).
Severity and scoring
- CVSS score
- 5.3 · MEDIUM
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-918
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- VMware · vCenter Server and Cloud Foundation
- Added to catalog
- 2022-03-07
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-03-21
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*
From (inclusive): 3.0
Before (exclusive): 3.10.1.2
cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*
From (inclusive): 4.0
Before (exclusive): 4.2
cpe:2.3:a:vmware:vcenter_server:6.5:-:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:c:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:e:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:f:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update1d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update1e:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update1g:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update2:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update2b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update2c:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update2d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update2g:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update3:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update3d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update3f:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.5:update3k:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:-:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update1:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update1b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update2:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update2a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update2c:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update3:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update3a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update3b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update3f:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update3g:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:update3j:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:7.0:a:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:7.0:b:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:7.0:c:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:7.0:d:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:7.0:update1:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:7.0:update1a:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.