CVE-2021-45605: NETGEAR r6400 Firmware

High severity, CVSS 8.8. 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 R6400 before 1.0.1.68, R7000 before 1.0.11.116, R6900P before 1.3.3.140, R7000P before 1.3.3.140, R7900 before 1.0.4.38, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, and XR300 before 1.0.3.50.

Affected products

• NETGEAR r6400 Firmware: before 1.0.1.68 (fixed in 1.0.1.68)
• NETGEAR r6900p Firmware: before 1.3.3.140 (fixed in 1.3.3.140)
• NETGEAR r7000 Firmware: before 1.0.11.116 (fixed in 1.0.11.116)
• NETGEAR r7000p Firmware: before 1.3.3.140 (fixed in 1.3.3.140)
• NETGEAR r7900 Firmware: before 1.0.4.38 (fixed in 1.0.4.38)
• NETGEAR RAX75 Firmware: before 1.0.3.102 (fixed in 1.0.3.102)
• NETGEAR RAX80 Firmware: before 1.0.3.102 (fixed in 1.0.3.102)
• NETGEAR XR300 Firmware: before 1.0.3.50 (fixed in 1.0.3.50)

Published 2021-12-26. Last modified 2026-06-17.