Vulnerability record · CVE-2026-90688 · published 14 September 2026

CVE-2026-90688: Memory buffer overflow vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.71% · top 48.4% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow Deferred

7.1CVSS 4.0 base score, v2 6.8

0.71%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

7References

15 Sep 2026Last modified by NVD

Description

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formIPMacBindAdd/README.md
https://vuldb.com/cve/CVE-2026-90688
https://vuldb.com/submit/914958
https://vuldb.com/vuln/403221
https://vuldb.com/vuln/403221/cti
https://www.tenda.com.cn/
https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formIPMacBindAdd/README.md

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Source: NIST National Vulnerability Database (record CVE-2026-90688), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.