High severity8.8NVD Advisory· Published Feb 21, 2026· Updated Jun 17, 2026
CVE-2026-2872
CVE-2026-2872
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- cpe:2.3:o:tenda:a21_firmware:1.0.0.0:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
5- github.com/QIU-DIE/cve-nneeww/issues/3nvdExploitIssue TrackingMitigationThird Party Advisory
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdThird Party AdvisoryVDB Entry
- vuldb.comnvdPermissions RequiredVDB Entry
- www.tenda.com.cnnvdProduct
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