Buffer overflow in Tenda Cx12l
CVE-2026-5685
A vulnerability was identified in Tenda CX12L 16.03.53.12. This affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument page leads to stack-based buffer overflow. The attack can be initiated rem…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (10.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Tenda Cx12l — versions 16.03.53.12
- Tenda Cx12l_firmware — versions 16.03.53.12
Weakness classification (CWE)
References
- VDB-355512 | Tenda CX12L addressNat fromAddressNat stack-based overflow (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-355512 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #792782 | Tenda CX12L V16.03.53.12 Stack-based Buffer Overflow (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Third Party Advisory, exploit, Mitigation, Issue Tracking)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-5685?
- CVE-2026-5685 is a high-severity vulnerability in Tenda Cx12l, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-06.
- How severe is CVE-2026-5685?
- High severity. CVSS v3 base score is 8.8 out of 10.