Medium severity4.9NVD Advisory· Published Apr 23, 2020· Updated Jun 17, 2026

CVE-2018-21142

Description

Certain NETGEAR devices are affected by denial of service. This affects R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7800 before 1.0.2.42, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Netgear/R6100 Firmware
cpe:2.3:o:netgear:r6100_firmware:*:*:*:*:*:*:*:*
Range: <1.0.1.22
Netgear/R7500 Firmware
cpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:*
Range: <1.0.0.122
Netgear/R7800 Firmware
cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
Range: <1.0.2.42
Netgear/R8900 Firmware
cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
Range: <1.0.3.10
Netgear/R9000 Firmware
cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
Range: <1.0.3.10
Netgear/Wndr3700 Firmware
cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:*
Range: <1.0.2.96
Netgear/Wndr4300 Firmware
cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*
Range: <1.0.2.98
Netgear/Wndr4500 Firmware
cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:*
Range: <1.0.0.54
Netgear/Wnr2000v5 Firmware
cpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:*
Range: <1.0.0.64
NETGEAR/NETGEAR devicesdescription
Netgear/R6100llm-fuzzy
Range: <1.0.1.22
Netgear/R7500llm-fuzzy
Range: <1.0.0.122
Netgear/R7800llm-fuzzy
Range: <1.0.2.42

Patches

Vulnerability mechanics

References

kb.netgear.com/000059491/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2017-3169nvdVendor Advisory

News mentions

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cvss	0.319
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000