Authorization Flaw in Tenda W30E V2 Firmware by Shenzhen Tenda
CVE-2026-24428

8.7HIGH

Key Information:

Vendor

Shenzhen Tenda Technology Co., Ltd.

Status
W30e V2
Vendor
CVE Published:
26 January 2026

What is CVE-2026-24428?

The firmware for the Tenda W30E V2, specifically versions up to V16.01.0.19(5037), suffers from a significant authorization weakness within the user management API. This flaw permits a low-privileged authenticated user to change the administrator password by directly submitting a specially crafted request to the backend endpoint, effectively bypassing the security measures that role-based restrictions are supposed to enforce. As a result, individuals with limited access can gain full administrative privileges, potentially leading to unauthorized control of the device and significant security risks.

Affected Version(s)

W30E V2 0 <= 16.01.0.19(5037)

References

https://www.tendacn.com/product/W30E
product
https://www.vulncheck.com/advisories/tenda-w30e-v2-incorr...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc.
.