A vulnerability was detected in Tenda A21 1.0.0.0. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.
References
| Link | Resource |
|---|---|
| https://github.com/QIU-DIE/cve-nneeww/issues/4 | Exploit Issue Tracking Mitigation Third Party Advisory |
| https://vuldb.com/?ctiid.347110 | Permissions Required VDB Entry |
| https://vuldb.com/?id.347110 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.754635 | Third Party Advisory VDB Entry |
| https://www.tenda.com.cn/ | Product |
Configurations
Configuration 1 (hide)
| AND |
|
History
23 Feb 2026, 20:56
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:tenda:a21_firmware:1.0.0.0:*:*:*:*:*:*:* cpe:2.3:h:tenda:a21:-:*:*:*:*:*:*:* |
|
| First Time |
Tenda a21
Tenda Tenda a21 Firmware |
|
| References | () https://github.com/QIU-DIE/cve-nneeww/issues/4 - Exploit, Issue Tracking, Mitigation, Third Party Advisory | |
| References | () https://vuldb.com/?ctiid.347110 - Permissions Required, VDB Entry | |
| References | () https://vuldb.com/?id.347110 - Third Party Advisory, VDB Entry | |
| References | () https://vuldb.com/?submit.754635 - Third Party Advisory, VDB Entry | |
| References | () https://www.tenda.com.cn/ - Product |
21 Feb 2026, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-21 17:15
Updated : 2026-02-23 20:56
NVD link : CVE-2026-2873
Mitre link : CVE-2026-2873
CVE.ORG link : CVE-2026-2873
JSON object : View
Products Affected
tenda
- a21_firmware
- a21