CVE-2018-21209

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-28 · updated 2026-06-17
Weakness: CWE-79

Description

Certain NETGEAR devices are affected by reflected XSS. This affects JNR1010v2 before 1.1.0.46, JR6150 before 1.0.1.10, JWNR2010v5 before 1.1.0.46, PR2000 before 1.0.0.20, R6050 before 1.0.1.10, R6220 before 1.1.0.60, WNDR3700v5 before 1.1.0.50, WNR1000v4 before 1.1.0.46, WNR2020 before 1.1.0.46, and WNR2050 before 1.1.0.46.

Affected products

NETGEAR Jnr1010 Firmware: before 1.1.0.46 — fixed in 1.1.0.46
NETGEAR JR6150: before 1.0.1.10 — fixed in 1.0.1.10
NETGEAR Jwnr2010 Firmware: before 1.1.0.46 — fixed in 1.1.0.46
NETGEAR Pr2000 Firmware: before 1.0.0.20 — fixed in 1.0.0.20
NETGEAR R6050 Firmware: before 1.0.1.10 — fixed in 1.0.1.10
NETGEAR R6220 Firmware: before 1.1.0.60 — fixed in 1.1.0.60
NETGEAR Wndr3700 Firmware: before 1.1.0.50 — fixed in 1.1.0.50
NETGEAR Wnr1000 Firmware: before 1.1.0.46 — fixed in 1.1.0.46
NETGEAR Wnr2020 Firmware: before 1.1.0.46 — fixed in 1.1.0.46
NETGEAR Wnr2050 Firmware: before 1.1.0.46 — fixed in 1.1.0.46

How to fix

Upgrade to a fixed version: NETGEAR Jnr1010 Firmware 1.1.0.46; NETGEAR JR6150 1.0.1.10; NETGEAR Jwnr2010 Firmware 1.1.0.46; NETGEAR Pr2000 Firmware 1.0.0.20; NETGEAR R6050 Firmware 1.0.1.10; NETGEAR R6220 Firmware 1.1.0.60; NETGEAR Wndr3700 Firmware 1.1.0.50; NETGEAR Wnr1000 Firmware 1.1.0.46; NETGEAR Wnr2020 Firmware 1.1.0.46; NETGEAR Wnr2050 Firmware 1.1.0.46. Check the vendor advisory for mitigations.

References

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