CVE-2018-21227: NETGEAR d7800 Firmware

Medium severity, CVSS 6.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects D7800 before 1.0.1.34, R6400v2 before 1.0.2.34, R6700 before 1.0.1.30, R6900 before 1.0.1.30, R6900P before 1.0.0.62, R7000 before 1.0.9.12, R7000P before 1.0.0.62, R7500v2 before 1.0.3.26, R7800 before 1.0.2.42, R9000 before 1.0.3.10, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.

Affected products

NETGEAR d7800 Firmware: before 1.0.1.34 (fixed in 1.0.1.34)
NETGEAR r6400 Firmware: before 1.0.2.34 (fixed in 1.0.2.34)
NETGEAR r6700 Firmware: before 1.0.1.30 (fixed in 1.0.1.30)
NETGEAR r6900 Firmware: before 1.0.1.30 (fixed in 1.0.1.30)
NETGEAR r6900p Firmware: before 1.0.0.62 (fixed in 1.0.0.62)
NETGEAR r7000 Firmware: before 1.0.9.12 (fixed in 1.0.9.12)
NETGEAR r7000p Firmware: before 1.0.0.62 (fixed in 1.0.0.62)
NETGEAR r7500 Firmware: before 1.0.3.26 (fixed in 1.0.3.26)
NETGEAR r7800 Firmware: before 1.0.2.42 (fixed in 1.0.2.42)
NETGEAR r9000 Firmware: before 1.0.3.10 (fixed in 1.0.3.10)
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 2020-04-24. Last modified 2026-06-17.