Buffer overflow in Tenda W20e
CVE-2026-90688
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.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (33.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Tenda W20e — versions 15.11.0.61068_1546_841_CN_TDC
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (related)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-90688?
- CVE-2026-90688 is a medium-severity vulnerability in Tenda W20e, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2026-09-14.
- How severe is CVE-2026-90688?
- Medium severity. CVSS v3 base score is 6.5 out of 10.