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CVE-2018-21162

CRITICAL
9.8
CVSS Score
Published: April 23, 2020 at 08:16 PM UTC
Updated: June 17, 2026 at 01:54 AM UTC
32 products affected across 1 vendorR6700 FirmwareR7000 FirmwareR8500 Firmware

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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%

Description

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D6400 before 1.0.0.78, EX6200 before 1.0.3.86, EX7000 before 1.0.0.64, R6250 before 1.0.4.8, R6300v2 before 1.0.4.6, R6400 before 1.0.1.12, R6700 before 1.0.1.16, R7000 before 1.0.7.10, R7100LG before 1.0.0.42, R7300DST before 1.0.0.44, R7900 before 1.0.1.12, R8000 before 1.0.3.36, R8300 before 1.0.2.74, R8500 before 1.0.2.74, WNDR3400v3 before 1.0.1.14, and WNR3500Lv2 before 1.2.0.48.

Affected

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

D6400 Firmware· NETGEAR
95%
v < 1.0.0.78
Affected range stops below 1.0.0.78, so it looks safe — our inference, not a vendor statement
netgear-d6400 (same device)
EX6200 Firmware· NETGEAR
95%
v < 1.0.3.86
Affected range stops below 1.0.3.86, so it looks safe — our inference, not a vendor statement
EX7000 Firmware· NETGEAR
95%
v < 1.0.0.64
Affected range stops below 1.0.0.64, so it looks safe — our inference, not a vendor statement
netgear-ex7000 (same device)
R6250 Firmware· NETGEAR
95%
v < 1.0.4.8
Affected range stops below 1.0.4.8, so it looks safe — our inference, not a vendor statement
netgear-r6250 (same device)
R6300 Firmware· NETGEAR
95%
v < 1.0.4.6
Affected range stops below 1.0.4.6, so it looks safe — our inference, not a vendor statement
netgear-r6300 (same device)
R6400 Firmware· NETGEAR
95%
v < 1.0.1.12
Affected range stops below 1.0.1.12, so it looks safe — our inference, not a vendor statement
R6700 Firmware· NETGEAR
95%
v < 1.0.1.16
Affected range stops below 1.0.1.16, so it looks safe — our inference, not a vendor statement
netgear-r6700 (same device)
R7000 Firmware· NETGEAR
95%
v < 1.0.7.10
Affected range stops below 1.0.7.10, so it looks safe — our inference, not a vendor statement
netgear-r7000 (same device)
R7100LG Firmware· NETGEAR
95%
v < 1.0.0.42
Affected range stops below 1.0.0.42, so it looks safe — our inference, not a vendor statement
R7300DST Firmware· NETGEAR
95%
v < 1.0.0.44
Affected range stops below 1.0.0.44, so it looks safe — our inference, not a vendor statement
netgear-r7300dst (same device)

Remediation

No guide yet

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

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://kb.netgear.com/000059147/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Gateways-Routers-and-Extenders-PSV-2016-0074

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78

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