CVE-2021-44971 Auth bypass in n/a

Critical 9.8 Published 28 Jan 2022 Updated 9 Jul 2026

Attackers can bypass authentication on Tenda routers to access sensitive information and potentially achieve remote code execution via chained command injection.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-44971?

CVE-2021-44971 is a critical authentication bypass vulnerability in Tenda Ac15 Firmware, published on 28 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple Tenda devices are affected by authentication bypass, such as AC15V1.0 Firmware V15.03.05.20_multi?AC5V1.0 Firmware V15.03.06.48_multi and so on. an attacker can obtain sensitive information, and even combine it with authenticated command injection to implement RCE.

Weakness: CWE-697

Which versions are affected by CVE-2021-44971?

It affects 2 products.

Products include Tenda Ac15 Firmware, Tenda Ac5 Firmware.

How do I fix CVE-2021-44971?

No fix has been published for CVE-2021-44971 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-44971 being exploited?

There is no known exploitation of CVE-2021-44971 in the wild and no public exploit code.

All Tenda Ac15 Firmware vulnerabilities

Sources

Also known as GHSA-cvxm-mgpf-m49w.