CVE-2021-44527: Medium severity ui unifi switch firmware vulnerability

Published Dec 7, 2021
·
Updated

A vulnerability found in UniFi Switch firmware Version 5.43.35 and earlier allows a malicious actor who has already gained access to the network to perform a Deny of Service (DoS) attack on the affected switch.This vulnerability is fixed in UniFi Switch firmware 5.76.6 and later.

Affected Software

1 affected component
UI Unifi Switch Firmware<5.76.6

Event History

Dec 7, 2021
CVE Published
via MITRE·01:12 PM
Data Sourced
via MITRE·01:12 PM
DescriptionWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected 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-2021-44527?

The severity of CVE-2021-44527 is medium with a severity value of 6.5.

2

What does CVE-2021-44527 affect?

CVE-2021-44527 affects UniFi Switch firmware Version 5.43.35 and earlier.

3

What can a malicious actor accomplish with CVE-2021-44527?

A malicious actor who has gained access to the network can perform a Denial of Service (DoS) attack on the affected switch.

4

How can I fix CVE-2021-44527?

To fix CVE-2021-44527, update to UniFi Switch firmware 5.76.6 or later.

5

Where can I find more information about CVE-2021-44527?

You can find more information about CVE-2021-44527 in the official Security Advisory Bulletin provided by UI.

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