CVE-2021-45656: NETGEAR AC2100 Firmware

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by server-side injection. This affects D6200 before 1.1.00.38, D7000 before 1.0.1.78, R6020 before 1.0.0.48, R6080 before 1.0.0.48, R6050 before 1.0.1.26, JR6150 before 1.0.1.26, R6120 before 1.0.0.66, R6220 before 1.1.0.100, R6230 before 1.1.0.100, R6260 before 1.1.0.78, R6800 before 1.2.0.76, R6900v2 before 1.2.0.76, R6700v2 before 1.2.0.76, R7450 before 1.2.0.76, AC2100 before 1.2.0.76, AC2400 before 1.2.0.76, AC2600 before 1.2.0.76, RBK40 before 2.5.1.16, RBR40 before 2.5.1.16, RBS40 before 2.5.1.16, RBK20 before 2.5.1.16, RBR20 before 2.5.1.16, RBS20 before 2.5.1.16, RBK50 before 2.5.1.16, RBR50 before 2.5.1.16, RBS50 before 2.5.1.16, and RBS50Y before 2.6.1.40.

Affected products

  • NETGEAR AC2100 Firmware: before 1.2.0.76 (fixed in 1.2.0.76)
  • NETGEAR AC2400 Firmware: before 1.2.0.76 (fixed in 1.2.0.76)
  • NETGEAR AC2600 Firmware: before 1.2.0.76 (fixed in 1.2.0.76)
  • NETGEAR d6200 Firmware: before 1.1.00.38 (fixed in 1.1.00.38)
  • NETGEAR d7000 Firmware: before 1.0.1.78 (fixed in 1.0.1.78)
  • NETGEAR JR6150 Firmware: before 1.0.1.26 (fixed in 1.0.1.26)
  • NETGEAR r6020 Firmware: before 1.0.0.48 (fixed in 1.0.0.48)
  • NETGEAR r6050 Firmware: before 1.0.1.26 (fixed in 1.0.1.26)
  • NETGEAR r6080 Firmware: before 1.0.0.48 (fixed in 1.0.0.48)
  • NETGEAR r6120 Firmware: before 1.0.0.66 (fixed in 1.0.0.66)
  • NETGEAR r6220 Firmware: before 1.1.0.100 (fixed in 1.1.0.100)
  • NETGEAR r6230 Firmware: before 1.1.0.110 (fixed in 1.1.0.110)
  • NETGEAR r6260 Firmware: before 1.1.0.78 (fixed in 1.1.0.78)
  • NETGEAR r6700 Firmware: before 1.2.0.76 (fixed in 1.2.0.76)
  • NETGEAR r6800 Firmware: before 1.2.0.76 (fixed in 1.2.0.76)
  • NETGEAR r6900 Firmware: before 1.2.0.76 (fixed in 1.2.0.76)
  • NETGEAR r7450 Firmware: before 1.2.0.76 (fixed in 1.2.0.76)
  • NETGEAR RBK20 Firmware: before 2.5.1.16 (fixed in 2.5.1.16)
  • NETGEAR RBK40 Firmware: before 2.5.1.16 (fixed in 2.5.1.16)
  • NETGEAR RBK50 Firmware: before 2.5.1.16 (fixed in 2.5.1.16)
  • NETGEAR RBR20 Firmware: before 2.5.1.16 (fixed in 2.5.1.16)
  • NETGEAR RBR40 Firmware: before 2.5.1.16 (fixed in 2.5.1.16)
  • NETGEAR RBR50 Firmware: before 2.5.1.16 (fixed in 2.5.1.16)
  • NETGEAR RBS20 Firmware: before 2.5.1.16 (fixed in 2.5.1.16)
  • NETGEAR RBS40 Firmware: before 2.5.1.16 (fixed in 2.5.1.16)
  • and 2 more

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