Description

ZBL EPON ONU Broadband Router V100R001 contains a privilege escalation vulnerability that allows limited administrative users to elevate access by sending requests to configuration endpoints. Attackers can exploit the vulnerability by accessing the configuration backup or password page to disclose the super user password and gain additional privileged functionalities.

INFO

Published Date :

2025-12-31T18:39:10.193Z

Last Modified :

2026-01-02T20:06:59.504Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2021-47741 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47741.

URL Resource
http://www.zblchina.com cve-icon cve-icon
https://web.archive.org/web/20211220094023/http://www.wd-thailand.com/ cve-icon cve-icon
https://www.exploit-db.com/exploits/49737 cve-icon cve-icon
https://www.vulncheck.com/advisories/zbl-epon-onu-broadband-router-vr-privilege-escalation-via-configuration-endpoint cve-icon cve-icon
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5647.php cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact