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.
References
| Link | Resource |
|---|---|
| https://github.com/QIU-DIE/cve-nneeww/issues/6 | Exploit Issue Tracking Mitigation Third Party Advisory |
| https://vuldb.com/?ctiid.347180 | Permissions Required VDB Entry |
| https://vuldb.com/?id.347180 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.754640 | Third Party Advisory VDB Entry |
| https://www.tenda.com.cn/ | Product |
Configurations
Configuration 1 (hide)
| AND |
|
History
23 Feb 2026, 21:00
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:tenda:a21_firmware:1.0.0.0:*:*:*:*:*:*:* cpe:2.3:h:tenda:a21:-:*:*:*:*:*:*:* |
|
| References | () https://github.com/QIU-DIE/cve-nneeww/issues/6 - Exploit, Issue Tracking, Mitigation, Third Party Advisory | |
| References | () https://vuldb.com/?ctiid.347180 - Permissions Required, VDB Entry | |
| References | () https://vuldb.com/?id.347180 - Third Party Advisory, VDB Entry | |
| References | () https://vuldb.com/?submit.754640 - Third Party Advisory, VDB Entry | |
| References | () https://www.tenda.com.cn/ - Product | |
| First Time |
Tenda a21
Tenda Tenda a21 Firmware |
21 Feb 2026, 21:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-21 21:16
Updated : 2026-02-23 21:00
NVD link : CVE-2026-2886
Mitre link : CVE-2026-2886
CVE.ORG link : CVE-2026-2886
JSON object : View
Products Affected
tenda
- a21_firmware
- a21