CVE-2026-2140

A vulnerability was identified in Tenda TX9 up to 22.03.02.10_multi. Affected by this issue is the function sub_4223E0 of the file /goform/setMacFilterCfg. Such manipulation of the argument deviceList leads to buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used.

• CWE-119
• CWE-120

• https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/setMacFilterCfg.mdExploit, Third Party Advisory
• https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/setMacFilterCfg.md#pocExploit
• https://vuldb.com/?ctiid.344775Permissions Required, VDB Entry
• https://vuldb.com/?id.344775Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.747251Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.749747Third Party Advisory, VDB Entry
• https://www.tenda.com.cn/Product

Published

Feb 8, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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