What’s Vulnerable › Vulnerabilities

CVE-2021-45392

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 12.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-14 · updated 2026-06-17
• Weakness: CWE-787

Description

A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in page /goform/setIPv6Status via the prefixDelegate parameter, which causes a Denial of Service.

Affected products

• Tenda Ax12 Firmware: 22.03.01.21_cn

References

• http://tendawifi.com/index.html
• https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/2
• https://www.tenda.com.cn/
• https://www.tenda.com.cn/product/AX12.html
• http://tendawifi.com/index.html
• https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/2
• https://www.tenda.com.cn/
• https://www.tenda.com.cn/product/AX12.html

Get alerted when CVE-2021-45392 or the next vulnerability affects your stack