CVE-2018-21231

MEDIUM
5.4
CVSS Score
Published: April 24, 2020 at 02:22 PM UTC
Updated: June 17, 2026 at 01:54 AM UTC
114 products affected across 1 vendorR7800 FirmwareR9000 FirmwareR6700 Firmware

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.5%

Description

Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects D1500 before 1.0.0.27, D500 before 1.0.0.27, D6100 before 1.0.0.57, D6220 before 1.0.0.40, D6400 before 1.0.0.74, D7000 before 1.0.1.60, D7800 before 1.0.1.34, D8500 before 1.0.3.39, DGN2200v4 before 1.0.0.94, DGN2200Bv4 before 1.0.0.94, EX2700 before 1.0.1.42, EX3700 before 1.0.0.64, EX3800 before 1.0.0.64, EX6000 before 1.0.0.24, EX6100 before 1.0.2.18, EX6120 before 1.0.0.32, EX6130 before 1.0.0.22, EX6150 before 1.0.0.34_1.0.70, EX6200 before 1.0.3.82_1.1.117, EX6400 before 1.0.1.78, EX7000 before 1.0.0.56, EX7300 before 1.0.1.78, JNR1010v2 before 1.1.0.42, JR6150 before 1.0.1.10, JWNR2010v5 before 1.1.0.42, PR2000 before 1.0.0.22, R6050 before 1.0.1.10, R6100 before 1.0.1.16, R6220 before 1.1.0.50, R6250 before 1.0.4.14, R6300v2 before 1.0.4.12, R6400v2 before 1.0.2.34, R6700 before 1.0.1.26, R6900 before 1.0.1.26, R6900P before 1.2.0.22, R7000 before 1.0.9.6, R7000P before 1.2.0.22, R7100LG before 1.0.0.40, R7300DST before 1.0.0.54, R7500 before 1.0.0.110, R7500v2 before 1.0.3.26, R7800 before 1.0.2.44, R7900 before 1.0.1.26, R8000 before 1.0.3.48, R8300 before 1.0.2.104, R8500 before 1.0.2.104, R9000 before 1.0.3.10, WN2000RPTv3 before 1.0.1.26, WN2500RPv2 before 1.0.1.46, WN3000RPv3 before 1.0.2.66, WN3100RPv2 before 1.0.0.56, WNDR3400v3 before 1.0.1.14, WNDR3700v4 before 1.0.2.96, WNDR3700v5 before 1.1.0.54, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.48, WNDR4500v3 before 1.0.0.48, WNR1000v4 before 1.1.0.42, WNR2000v5 before 1.0.0.64, WNR2020 before 1.1.0.42, and WNR2050 before 1.1.0.42.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.0.0.27
Affected range stops below 1.0.0.27, so it looks safe — our inference, not a vendor statement
netgear-d1500 (same device)
v < 1.0.0.27
Affected range stops below 1.0.0.27, so it looks safe — our inference, not a vendor statement
netgear-d500 (same device)
v < 1.0.0.57
Affected range stops below 1.0.0.57, so it looks safe — our inference, not a vendor statement
netgear-d6100 (same device)
v < 1.0.0.40
Affected range stops below 1.0.0.40, so it looks safe — our inference, not a vendor statement
netgear-d6220 (same device)
v < 1.0.0.74
Affected range stops below 1.0.0.74, so it looks safe — our inference, not a vendor statement
netgear-d6400 (same device)
v < 1.0.1.60
Affected range stops below 1.0.1.60, so it looks safe — our inference, not a vendor statement
netgear-d7000 (same device)
v < 1.0.1.34
Affected range stops below 1.0.1.34, so it looks safe — our inference, not a vendor statement
netgear-d7800 (same device)
v < 1.0.3.39
Affected range stops below 1.0.3.39, so it looks safe — our inference, not a vendor statement
netgear-d8500 (same device)
v < 1.0.0.94
Affected range stops below 1.0.0.94, so it looks safe — our inference, not a vendor statement
netgear-dgn2200 (same device)
v < 1.0.0.94
Affected range stops below 1.0.0.94, so it looks safe — our inference, not a vendor statement
netgear-dgn2200b (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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