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Vulnerability record · CVE-2021-21744 · published 20 October 2021

CVE-2021-21744: Zte mf971r firmware vulnerability

Zte · Mf971r Firmware

ZTE MF971R product has a configuration file control vulnerability. An attacker could use this vulnerability to modify the configuration parameters of the device, causing some security functions of the device to be disabled.

7.5 CVSS 3.1 High EPSS 0.83% · top 44.3%
7.5CVSS 3.1 base score, v2 5.0
0.83%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

ZTE MF971R product has a configuration file control vulnerability. An attacker could use this vulnerability to modify the configuration parameters of the device, causing some security functions of the device to be disabled.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-21748Zte mf971r firmware out-of-bounds write vulnerabilityZTE MF971R product has two stack-based buffer overflow vulnerabilities. An attacker could exploit the vulnerabilities to execute arbitrary code.EPSS 1.8%9.8CVE-2021-21749Zte mf971r firmware out-of-bounds write vulnerabilityZTE MF971R product has two stack-based buffer overflow vulnerabilities. An attacker could exploit the vulnerabilities to execute arbitrary code.EPSS 1.6%6.1CVE-2021-21746Zte mf971r firmware cross-site scripting vulnerabilityZTE MF971R product has reflective XSS vulnerability. An attacker could use the vulnerability to obtain cookie information.EPSS 0.58%6.1CVE-2021-21747Zte mf971r firmware cross-site scripting vulnerabilityZTE MF971R product has reflective XSS vulnerability. An attacker could use the vulnerability to obtain cookie information.EPSS 0.58%4.3CVE-2021-21743Zte mf971r firmware injection vulnerabilityZTE MF971R product has a CRLF injection vulnerability. An attacker could exploit the vulnerability to modify the HTTP response header information thr…EPSS 0.85%4.3CVE-2021-21745ZTE MF971R Referer authentication bypass via missing CSRF checkThe ZTE MF971R router trusts the Referer header for authorization decisions and does not verify CSRF tokens, so a crafted request can bypass authenti…EPSS 56%analysed

Source: NIST National Vulnerability Database (record CVE-2021-21744), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.