CVE-2021-43039: Medium severity unitrends backup vulnerability

Published Dec 6, 2021
·
Updated

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The Samba file sharing service allowed anonymous read/write access.

Affected Software

1 affected component
Kaseya Unitrends Backup>=10.0<10.5.5

Event History

Dec 6, 2021
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·04:15 AM
DescriptionSeverityAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2021-43039?

CVE-2021-43039 has a high severity rating due to unauthorized access to sensitive files.

2

How do I fix CVE-2021-43039?

To fix CVE-2021-43039, upgrade the Kaseya Unitrends Backup Appliance to version 10.5.5 or later.

3

What are the risks associated with CVE-2021-43039?

The risks of CVE-2021-43039 include potential data breaches, loss of data confidentiality, and unauthorized modifications.

4

Is CVE-2021-43039 present in all versions of Kaseya Unitrends Backup?

CVE-2021-43039 affects Kaseya Unitrends Backup versions from 10.0 to 10.5.4.

5

What is the impact of exposing Samba file sharing in CVE-2021-43039?

Exposing Samba file sharing in CVE-2021-43039 allows attackers to access files without authentication, posing a significant security threat.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203