CVE-2021-45389

Name: CVE-2021-45389
Creator: NVD / NIST
Published: 2022-01-04T16:15:09.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.17%

Last modified Jun 17, 2026

CVE-2021-45389 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.17%

63.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Starwind	Command Center	6864
Starwind	San\&Nas	1578

References

Timeline

Published: Jan 4, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45389?

How severe is CVE-2021-45389?

CVE-2021-45389 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45389?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45389?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST