Brute-force Authentication Vulnerability in Shenzhen Tenda W30E V2
CVE-2026-24436

9.2CRITICAL

Key Information:

Vendor

Shenzhen Tenda Technology Co., Ltd.

Status
W30e V2
Vendor
CVE Published:
26 January 2026

What is CVE-2026-24436?

The Shenzhen Tenda W30E V2 firmware versions up to and including V16.01.0.19(5037) are susceptible to a vulnerability that lacks proper rate limiting and account lockout mechanisms on key authentication endpoints. This oversight enables attackers to carry out unlimited brute-force attempts to gain unauthorized access to administrative credentials, significantly increasing the risk of compromising the device's security.

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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-lacks-...
third-party-advisory

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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