A security flaw has been discovered in Tenda A21 1.0.0.0. Affected by this issue is the function set_qosMib_list of the file /goform/formSetQosBand. The manipulation of the argument list results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
References
| Link | Resource |
|---|---|
| https://github.com/QIU-DIE/cve-nneeww/issues/1 | Exploit Issue Tracking Mitigation Third Party Advisory |
| https://vuldb.com/?ctiid.347107 | Permissions Required VDB Entry |
| https://vuldb.com/?id.347107 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.754627 | Third Party Advisory VDB Entry |
| https://www.tenda.com.cn/ | Product |
Configurations
Configuration 1 (hide)
| AND |
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History
23 Feb 2026, 21:00
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Tenda a21
Tenda Tenda a21 Firmware |
|
| 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/1 - Exploit, Issue Tracking, Mitigation, Third Party Advisory | |
| References | () https://vuldb.com/?ctiid.347107 - Permissions Required, VDB Entry | |
| References | () https://vuldb.com/?id.347107 - Third Party Advisory, VDB Entry | |
| References | () https://vuldb.com/?submit.754627 - Third Party Advisory, VDB Entry | |
| References | () https://www.tenda.com.cn/ - Product |
21 Feb 2026, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-21 15:15
Updated : 2026-02-23 21:00
NVD link : CVE-2026-2870
Mitre link : CVE-2026-2870
CVE.ORG link : CVE-2026-2870
JSON object : View
Products Affected
tenda
- a21_firmware
- a21