A weakness has been identified in Tenda A21 1.0.0.0. This affects the function fromSetIpMacBind of the file /goform/SetIpMacBind. This manipulation of the argument list causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 23 Feb 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Tenda a21 Firmware
CPEs cpe:2.3:h:tenda:a21:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:a21_firmware:1.0.0.0:*:*:*:*:*:*:*
Vendors & Products Tenda a21 Firmware

Mon, 23 Feb 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 23 Feb 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Tenda
Tenda a21
Vendors & Products Tenda
Tenda a21

Sat, 21 Feb 2026 15:45:00 +0000

Type Values Removed Values Added
Description A weakness has been identified in Tenda A21 1.0.0.0. This affects the function fromSetIpMacBind of the file /goform/SetIpMacBind. This manipulation of the argument list causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
Title Tenda A21 SetIpMacBind fromSetIpMacBind stack-based overflow
Weaknesses CWE-119
CWE-121
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-02-23T19:38:22.083Z

Reserved: 2026-02-20T14:40:42.148Z

Link: CVE-2026-2871

cve-icon Vulnrichment

Updated: 2026-02-23T19:38:15.304Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-21T16:16:05.133

Modified: 2026-02-23T20:59:13.240

Link: CVE-2026-2871

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-23T14:31:52Z

Weaknesses