High severity7.5NVD Advisory· Published Feb 16, 2022· Updated Jun 17, 2026
CVE-2021-45391
CVE-2021-45391
Description
A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service.
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Affected products
3- cpe:2.3:o:tenda:ax12_firmware:22.03.01.21_cn:*:*:*:*:*:*:*
- Tenda/Router AX12description
Patches
Vulnerability mechanics
References
4- github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/1nvdExploitThird Party Advisory
- www.tenda.com.cnnvdVendor Advisory
- www.tenda.com.cn/product/AX12.htmlnvdProductVendor Advisory
- tendawifi.com/index.htmlnvdBroken Link
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