What is CVE-2021-45389?

CVE-2021-45389 is a critical-severity vulnerability in Starwind Command Center, classified under Improper Authentication. CVSS score: 9.8/10. Published 2022-01-04.

How severe is CVE-2021-45389?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Starwind Command Center

CVE-2021-45389

A flaw was found with the JWT token. A self-signed JWT token could be injected into the update manager and bypass the authentication process, thus could escalate privileges. This affects StarWind SAN and NAS build 1578 and StarWind Command Center build 6864.

Vulnerability class: Broken Authentication

Published 2022-01-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.3th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Starwind Command Center — versions 6864
Starwind San\&nas — versions 1578

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.starwindsoftware.com/security/sw-20211512-0001/ (Vendor Advisory)
www.starwindsoftware.com/security/sw-20211215-0001/

Frequently asked questions

What is CVE-2021-45389?: CVE-2021-45389 is a critical-severity vulnerability in Starwind Command Center, classified under Improper Authentication. CVSS score: 9.8/10. Published 2022-01-04.
How severe is CVE-2021-45389?: Critical severity. CVSS v3 base score is 9.8 out of 10.