CVE-2018-21208: NETGEAR d6100 Firmware

High severity, CVSS 8.8. EPSS: 1.5% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D6100 before 1.0.0.57, R6100 before 1.0.1.20, R7500v2 before 1.0.3.24, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.

Affected products

• NETGEAR d6100 Firmware: before 1.0.0.57 (fixed in 1.0.0.57)
• NETGEAR r6100 Firmware: before 1.0.1.20 (fixed in 1.0.1.20)
• NETGEAR r7500 Firmware: before 1.0.3.24 (fixed in 1.0.3.24)
• NETGEAR WNDR4300 Firmware: before 1.0.0.50 (fixed in 1.0.0.50)
• NETGEAR WNDR4500 Firmware: before 1.0.0.50 (fixed in 1.0.0.50)

Published 2020-04-28. Last modified 2026-06-17.