CVE-2018-21196: NETGEAR d6100 Firmware

Medium severity, CVSS 6.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R6100 before 1.0.1.20, R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, and WNR2000v5 before 1.0.0.62.

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 r7800 Firmware: before 1.0.2.40 (fixed in 1.0.2.40)
• NETGEAR r9000 Firmware: before 1.0.2.52 (fixed in 1.0.2.52)
• NETGEAR WNDR3700 Firmware: before 1.0.2.92 (fixed in 1.0.2.92)
• NETGEAR WNDR4300 Firmware: before 1.0.2.94 (fixed in 1.0.2.94)
• NETGEAR WNR2000 Firmware: before 1.0.0.62 (fixed in 1.0.0.62)

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