CVE-2021-44246: High severity totolink a720r firmware vulnerability

Published Feb 4, 2022
·
Updated

Totolink devices A3100R v4.1.2cu.5050B20200504, A830R v5.9c.4729B20191112, and A720R v4.1.5cu.470B20200911 were discovered to contain a stack overflow in the function setNoticeCfg. This vulnerability allows attackers to cause a Denial of Service (DoS) via the IpTo parameter.

Affected Software

6 affected components
TOTOLINK A720r Firmware=4.1.5cu.470_b20200911
TOTOLINK A720R
TOTOLINK A830r Firmware=5.9c.4729_b20191112
TOTOLINK A830R
TOTOLINK A3100r Firmware=4.1.2cu.5050_b20200504
TOTOLINK A3100R

Event History

Feb 4, 2022
CVE Published
via MITRE·01:34 AM
Data Sourced
via MITRE·01:34 AM
Description
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 CVE-2021-44246?

CVE-2021-44246 is a vulnerability found in Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911.

2

What is the severity of CVE-2021-44246?

The severity of CVE-2021-44246 is high with a CVSS score of 7.5.

3

How does CVE-2021-44246 impact Totolink devices?

CVE-2021-44246 allows attackers to cause a Denial of Service (DoS) on Totolink devices A3100R, A830R, and A720R.

4

How can I fix CVE-2021-44246 on my Totolink device?

Currently, there is no known fix or patch available for CVE-2021-44246. It is recommended to monitor vendor updates for any available security patches or mitigations.

5

Where can I find more information about CVE-2021-44246?

You can find more information about CVE-2021-44246 at the following link: https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_2/2.md

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