CVE-2026-2886

A weakness has been identified in Tenda A21 1.0.0.0. This affects the function set_device_name of the file /goform/SetOnlineDevName. This manipulation of the argument devName causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

• CWE-119
• CWE-121

• https://github.com/QIU-DIE/cve-nneeww/issues/6Exploit, Issue Tracking, Mitigation, Third Party Advisory
• https://vuldb.com/?ctiid.347180Permissions Required, VDB Entry
• https://vuldb.com/?id.347180Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.754640Third Party Advisory, VDB Entry
• https://www.tenda.com.cn/Product

Published

Feb 21, 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.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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