What’s Vulnerable › Vulnerabilities

CVE-2018-21229

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-24 · updated 2026-06-17

Description

Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R7500v2 before 1.0.3.20, R7800 before 1.0.2.38, WN3000RPv3 before 1.0.2.50, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.

Affected products

• NETGEAR R7500 Firmware: before 1.0.3.20 — fixed in 1.0.3.20
• NETGEAR R7800 Firmware: before 1.0.2.38 — fixed in 1.0.2.38
• NETGEAR Wn3000Rp Firmware: before 1.0.2.50 — fixed in 1.0.2.50
• NETGEAR Wndr4300 Firmware: before 1.0.0.50 — fixed in 1.0.0.50
• Netgear WNDR4500: before 1.0.0.50 — fixed in 1.0.0.50

How to fix

Upgrade to a fixed version: NETGEAR R7500 Firmware 1.0.3.20; NETGEAR R7800 Firmware 1.0.2.38; NETGEAR Wn3000Rp Firmware 1.0.2.50; NETGEAR Wndr4300 Firmware 1.0.0.50; Netgear WNDR4500 1.0.0.50. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000055105/Security-Advisory-for-Security-Misconfiguration-on-Some-Routers-and-Extenders-PSV-2016-0124
• https://kb.netgear.com/000055105/Security-Advisory-for-Security-Misconfiguration-on-Some-Routers-and-Extenders-PSV-2016-0124

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