What is CVE-2021-21748?

CVE-2021-21748 is a vulnerability in the ZTE MF971R product that allows an attacker to execute arbitrary code through stack-based buffer overflow vulnerabilities.

How severe is CVE-2021-21748?

CVE-2021-21748 has a severity rating of 9.8, which is considered critical.

What software is affected by CVE-2021-21748?

The ZTE MF971R firmware versions v1.0.0b05 and 1v1.0.0b06 are affected by CVE-2021-21748.

How can an attacker exploit CVE-2021-21748?

An attacker can exploit CVE-2021-21748 by utilizing the stack-based buffer overflow vulnerabilities to execute arbitrary code.

Is there a fix available for CVE-2021-21748?

ZTE has released a security advisory with firmware updates addressing the CVE-2021-21748 vulnerability. Please refer to the ZTE support website for more information.

Vulnerability/
CVE-2021-21748

critical

9.8

CWE

787 119

20/10/2021

3/8/2024

CVE-2021-21748: Buffer Overflow

First published: Wed Oct 20 2021(Updated: )

ZTE MF971R product has two stack-based buffer overflow vulnerabilities. An attacker could exploit the vulnerabilities to execute arbitrary code.

Credit: psirt@zte.com.cn

Affected Software	Affected Version	How to fix
Zte Mf971r Firmware	=v1.0.0b05
ZTE MF971R
Zte Mf971r Firmware	=1v1.0.0b06
Zte Mf971r Firmware	=2v1.0.0b03
Zte Mf971r Firmware	=s2v1.0.0b03
Zte Mf971r Firmware	=sv1.0.0b05

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Reference Links

https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764

Frequently Asked Questions

What is CVE-2021-21748?
CVE-2021-21748 is a vulnerability in the ZTE MF971R product that allows an attacker to execute arbitrary code through stack-based buffer overflow vulnerabilities.
How severe is CVE-2021-21748?
CVE-2021-21748 has a severity rating of 9.8, which is considered critical.
What software is affected by CVE-2021-21748?
The ZTE MF971R firmware versions v1.0.0b05 and 1v1.0.0b06 are affected by CVE-2021-21748.
How can an attacker exploit CVE-2021-21748?
An attacker can exploit CVE-2021-21748 by utilizing the stack-based buffer overflow vulnerabilities to execute arbitrary code.
Is there a fix available for CVE-2021-21748?
ZTE has released a security advisory with firmware updates addressing the CVE-2021-21748 vulnerability. Please refer to the ZTE support website for more information.

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version/zte mf971r firmware/v1.0.0b05
canonical/zte mf971r
version/zte mf971r firmware/1v1.0.0b06
version/zte mf971r firmware/2v1.0.0b03
version/zte mf971r firmware/s2v1.0.0b03
version/zte mf971r firmware/sv1.0.0b05

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