CVE-2021-44971

Name: CVE-2021-44971
Creator: NVD / NIST
Published: 2022-01-28T19:15:07.963+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.59%

Last modified Jun 17, 2026

CVE-2021-44971 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.59% chance of exploitation in the next 30 days.

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.

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

2.59%

83.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-697

Affected Software

Vendor	Product	Versions
Tenda	Ac15 Firmware	15.03.05.20_multi
Tenda	Ac5 Firmware	15.03.06.48_multi

References

http://ac15v10.comBroken Link, URL Repurposed
http://tenda.comVendor Advisory
https://github.com/21Gun5/my_cve/blob/main/tenda/bypass_auth.mdBroken Link
http://ac15v10.comBroken Link, URL Repurposed
http://tenda.comVendor Advisory
https://github.com/21Gun5/my_cve/blob/main/tenda/bypass_auth.mdBroken Link

Timeline

Published: Jan 28, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44971?

How severe is CVE-2021-44971?

CVE-2021-44971 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.59% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44971?

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-2021-44971?

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

Scan your code now

Source: NVD / NIST