CVE-2026-3729: Tenda f453 Firmware

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

A vulnerability was identified in Tenda F453 1.0.0.3/3.As. Impacted is the function fromPptpUserAdd of the file /goform/PPTPDClient. Such manipulation of the argument username/opttype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.

Affected products

• Tenda f453 Firmware: version 1.0.0.3 only

Published 2026-03-08. Last modified 2026-06-17.