CVE-2026-90688

Tenda W20E HTTP formIPMacBindAdd stack-based overflow

State: Published
Severity: 7.1 High
Published: Sep 14, 2026
Updated: Sep 15, 2026
Reserved: Sep 13, 2026

Description

A vulnerability was identified in Tenda W20E 15.11.0.61068_1546_841_CN_TDC. This issue affects the function formIPMacBindAdd of the component HTTP Handler. Such manipulation of the argument IPMacBindRule leads to stack-based buffer overflow. It is possible to launch the attack remotely.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X	VulDB
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:X/RC:R	VulDB
3.0	6.5 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:X/RC:R	VulDB
2.0	6.8 Medium	AV:N/AC:L/Au:S/C:N/I:N/A:C/E:ND/RL:ND/RC:UR	VulDB

Weaknesses

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

Affected Products

Product	Versions
W20ETenda	15.11.0.61068_1546_841_CN_TDCAffected

References

VDB-403221 | Tenda W20E HTTP formIPMacBindAdd stack-based overflowvdb-entrytechnical-description
VDB-403221 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-90688 | CVE Analysis and Reportthird-party-advisory
Submit #914958 | Tenda Router US_W20EV4.0br_V15.11.0.61068_1546_841_CN_TDC Memory Corruptionthird-party-advisory
https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formIPMacBindAdd/README.mdrelated
https://www.tenda.com.cn/product

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.