CVE-2026-2871

Tenda A21 SetIpMacBind fromSetIpMacBind stack-based overflow

State: Published
Severity: 8.7 High
Published: Feb 21, 2026
Updated: Feb 23, 2026
Reserved: Feb 20, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	VulDB
3.1	8.8 High	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	VulDB
3.0	8.8 High	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	VulDB
2.0	9.0 High	AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-121 Stack-based Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
A21Tenda	1.0.0.0Affected

References

VDB-347108 | Tenda A21 SetIpMacBind fromSetIpMacBind stack-based overflowvdb-entrytechnical-description
VDB-347108 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #754631 | Tenda A21 V1.0.0.0 Stack-based Buffer Overflowthird-party-advisory
Submit #754630 | Tenda A21 V1.0.0.0 stack (Duplicate)third-party-advisory
https://github.com/QIU-DIE/cve-nneeww/issues/2exploitissue-tracking
https://www.tenda.com.cn/product

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