CVE-2026-24109: Tenda w20e Firmware

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `picName`. When this value is used in `sprintf` without validating variable sizes, it could lead to a buffer overflow vulnerability.

Affected products

• Tenda w20e Firmware: version 15.11.0.6 only

Published 2026-03-02. Last modified 2026-06-17.