CVE-2017-18739: NETGEAR r6220 Firmware

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects R6220 before V1.1.0.50, R7800 before V1.0.2.36, WNDR3400v3 before 1.0.1.14, and WNDR3700v5 before V1.1.0.48.

Affected products

• NETGEAR r6220 Firmware: before 1.1.0.50 (fixed in 1.1.0.50)
• NETGEAR r7800 Firmware: before 1.0.2.36 (fixed in 1.0.2.36)
• NETGEAR WNDR3400 Firmware: before 1.0.1.14 (fixed in 1.0.1.14)
• NETGEAR WNDR3700 Firmware: before 1.1.0.48 (fixed in 1.1.0.48)

Published 2020-04-23. Last modified 2026-06-17.