CVE-2018-21134

Critical

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6700 before 1.0.1.48, R7900 before 1.0.2.16, R6900 before 1.0.1.48, R7000P before 1.3.1.44, R6900P before 1.3.1.44, R6250 before 1.0.4.30, R6300v2 before 1.0.4.32, R6400 before 1.0.1.44, R6400v2 before 1.0.2.60, R7000 before 1.0.9.34, R7100LG before 1.0.0.48, R7300 before 1.0.0.68, R8000 before 1.0.4.18, R8000P before 1.4.1.24, R7900P before 1.4.1.24, R8500 before 1.0.2.122, R8300 before 1.0.2.122, WN2500RPv2 before 1.0.1.54, EX3700 before 1.0.0.72, EX3800 before 1.0.0.72, EX6000 before 1.0.0.32, EX6100 before 1.0.2.24, EX6120 before 1.0.0.42, EX6130 before 1.0.0.24, EX6150v1 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, D7000v2 before 1.0.0.51, D6220 before 1.0.0.46, D6400 before 1.0.0.82, and D8500 before 1.0.3.42.

SeverityCritical
CVSS9.8
Exploit probability—
ProductNetgear R6700 Firmware
PublishedApr 23, 2020
First seenApr 23, 2020

How to fix

Update
  • netgear r6700_firmware1.0.1.48 or later
  • netgear r7900_firmware1.0.2.16 or later
  • netgear r6900_firmware1.0.1.48 or later
  • netgear r7000p_firmware1.3.1.44 or later
  • netgear r6900p_firmware1.3.1.44 or later
  • netgear r6250_firmware1.0.4.30 or later
  • netgear r6300_firmware1.0.4.32 or later
  • netgear r6400_firmware1.0.1.44, 1.0.2.60 or later
  • netgear r7000_firmware1.0.9.34 or later
  • netgear r7100lg_firmware1.0.0.48 or later
  • netgear r7300_firmware1.0.0.68 or later
  • netgear r8000_firmware1.0.4.18 or later

Affected products

ProductAffected versionsFixed in
netgear r6700_firmwarev < 1.0.1.481.0.1.48
netgear r7900_firmwarev < 1.0.2.161.0.2.16
netgear r6900_firmwarev < 1.0.1.481.0.1.48
netgear r7000p_firmwarev < 1.3.1.441.3.1.44
netgear r6900p_firmwarev < 1.3.1.441.3.1.44
netgear r6250_firmwarev < 1.0.4.301.0.4.30
netgear r6300_firmwarev < 1.0.4.321.0.4.32
netgear r6400_firmwarev < 1.0.1.44, v < 1.0.2.601.0.1.44, 1.0.2.60
netgear r7000_firmwarev < 1.0.9.341.0.9.34
netgear r7100lg_firmwarev < 1.0.0.481.0.0.48
netgear r7300_firmwarev < 1.0.0.681.0.0.68
netgear r8000_firmwarev < 1.0.4.181.0.4.18
netgear r8000p_firmwarev < 1.4.1.241.4.1.24
netgear r7900p_firmwarev < 1.4.1.241.4.1.24
netgear r8500_firmwarev < 1.0.2.1221.0.2.122
netgear r8300_firmwarev < 1.0.2.1221.0.2.122
netgear wn2500rp_firmwarev < 1.0.1.541.0.1.54
netgear ex3700_firmwarev < 1.0.0.721.0.0.72
netgear ex3800_firmwarev < 1.0.0.721.0.0.72
netgear ex6000_firmwarev < 1.0.0.321.0.0.32
netgear ex6100_firmwarev < 1.0.2.241.0.2.24
netgear ex6120_firmwarev < 1.0.0.421.0.0.42
netgear ex6130_firmwarev < 1.0.0.241.0.0.24
netgear ex6150_firmwarev < 1.0.0.421.0.0.42
netgear ex6200_firmwarev < 1.0.3.881.0.3.88
netgear ex7000_firmwarev < 1.0.0.661.0.0.66
netgear d7000_firmwarev < 1.0.0.511.0.0.51
netgear d6220_firmwarev < 1.0.0.461.0.0.46
netgear d6400_firmwarev < 1.0.0.821.0.0.82
netgear d8500_firmwarev < 1.0.3.421.0.3.42

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