Title: CVE-2021-37750 MIT Kerberos 5 vulnerability in StarWind products

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

Vulnerability ID: SW-20220817-0004

Version: 1.0

Date: 2022-08-17

Status: Final

CVEs: CVE-2021-37750


MIT Kerberos 5 versions prior to 1.18.5 and 1.19.x prior to 1.19.3 are susceptible to a vulnerability in the KDC which when successfully exploited could lead to Denial of Service (DoS).


Successful exploitation of this vulnerability could lead to Denial of Service (DoS).

Vulnerability Scoring

CVE CVSS 2.0 Score CVSS 3.x Score
CVE-2021-37750 4.0 (MEDIUM) 6.5 (MEDIUM)




Resource Hyperlink
NVD https://nvd.nist.gov/vuln/detail/CVE-2021-37750


Affected Products:

StarWind VSAN Version V8 (build 14338)

Not affected products:

StarWind VSAN (all previous versions)

StarWind SAN&NAS (all versions)

StarWind Command Center (any setup)

StarWind VTLA (any setup)

StarWind VTL component (all versions for Windows Server)

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)

StarWind SA (any setup)

Software Versions and Fixes

Fixed in StarWind VSAN Version V8 (build 14398)


Update StarWind VSAN to the version V8 (build 14398) 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 2022-08-17 Initial Public Release and Final Notice