Title: CVE-2023-20867 Open VM Tools vulnerability in StarWind Products

Note: StarWind will continue to update this vulnerability as new information becomes available.

Vulnerability ID: SW-20230803-0007

Version: 3.0

Date: 2023-08-03

Status: Final

CVEs: CVE-2023-20867


An issue with VMware Tools.


A fully compromised ESXi host can force VMware Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine.

Vulnerability Scoring

CVE CVSS 2.0 Score CVSS 3.x Score Vector
CVE-2023-20867 N/A 3.9 (LOW) CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N



Resource Hyperlink
NVD https://nvd.nist.gov/vuln/detail/CVE-2023-20867


Affected Products: 

StarWind SAN&NAS V8 R15

StarWind VSAN Version V8 (build 15159)

Not affected products:

StarWind V2V (all versions)

StarWind Tape Redirector component (all versions)

StarWind Deduplication Analyzer (all versions)

StarWind rPerf (all versions)

StarWind iSCSI Accelerator (all versions)

StarWind NVMe-oF Initiator (all versions)

Software Versions and Fixes

Fixed in StarWind Virtual SAN (VSAN) CVM Version 20231016 Version V8 (build 15260)

Fixed in StarWind VSAN Version V8 (build 15260)


Update to StarWind Virtual SAN (VSAN) CVM Version 20231016 Version V8 (build 15260) or higher

Update to StarWind VSAN Version V8 (build 15260) or higher

Obtaining Software Fixes 

Software updates will be available in StarWind release notes – https://www.starwindsoftware.com/release-notes-build. To update the software, perform the steps described at the following link  – https://knowledgebase.starwindsoftware.com/guidance/upgrading-from-any-starwind-version-to-any-starwind-version/ or contact support to perform an update. You can submit a support request using the following link https://www.starwindsoftware.com/support-form or contact Support directly via email support@starwind.com or via phone +1 617 829 4499.

Status of Notice


StarWind will continue to update information regarding this vulnerability as new details become available.

This vulnerability article should be considered as the single source of current, up-to-date, authorized and accurate information posted by StarWind Software.

Revision History 

Revision # Date Comments
1.0 2023-08-03 Initial Public Release
2.0 2023-09-15 Added remediation for StarWind vSAN
3.0 2023-10-17 Added remediation steps. Final status