CVE-2026-2872 — Tenda A21 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based overflow
A security vulnerability has been detected in Tenda A21 1.0.0.0. This vulnerability affects the function set_device_name of the file /goform/setBlackRule of the component MAC Fi…
Published: 2026-02-21 · CVSS: 8.7 · CVSS 4.0
A security vulnerability has been detected in Tenda A21 1.0.0.0. This vulnerability affects the function set_device_name of the file /goform/setBlackRule of the component MAC Filtering Configuration Endpoint. Such manipulation of the argument devName/mac leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7