What’s Vulnerable › Vulnerabilities

CVE-2026-24436: Tenda W30E V2 Lacks Rate Limiting on Authentication

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-26 · updated 2026-06-17
• Weakness: CWE-307

Description

Shenzhen Tenda W30E V2 firmware versions up to and including V16.01.0.19(5037) do not enforce rate limiting or account lockout mechanisms on authentication endpoints. This allows attackers to perform unrestricted brute-force attempts against administrative credentials.

Affected products

• Shenzhen Tenda Technology Co., Ltd. W30E V2: through 16.01.0.19\(5037\)

References

• https://www.tendacn.com/product/W30E
• https://www.vulncheck.com/advisories/tenda-w30e-v2-lacks-rate-limiting-on-authentication

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