What’s Vulnerable › Vulnerabilities

CVE-2017-18866

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-05-05 · updated 2026-06-17
• Weakness: CWE-79

Description

Certain NETGEAR devices are affected by stored XSS. This affects R9000 before 1.0.2.40, R6100 before 1.0.1.1, 6R7500 before 1.0.0.110, R7500v2 before 1.0.3.20, R7800 before 1.0.2.36, WNDR4300v2 before 1.0.0.48, and WNR2000v5 before 1.0.0.58.

Affected products

• NETGEAR 6R7500 Firmware: before 1.0.0.110 — fixed in 1.0.0.110
• NETGEAR R6100 Firmware: before 1.0.1.1 — fixed in 1.0.1.1
• NETGEAR R7500 Firmware: before 1.0.3.20 — fixed in 1.0.3.20
• NETGEAR R7800 Firmware: before 1.0.2.36 — fixed in 1.0.2.36
• NETGEAR R9000 Firmware: before 1.0.2.40 — fixed in 1.0.2.40
• NETGEAR Wndr4300 Firmware: before 1.0.0.48 — fixed in 1.0.0.48
• NETGEAR Wnr2000 Firmware: before 1.0.0.58 — fixed in 1.0.0.58

How to fix

Upgrade to a fixed version: NETGEAR 6R7500 Firmware 1.0.0.110; NETGEAR R6100 Firmware 1.0.1.1; NETGEAR R7500 Firmware 1.0.3.20; NETGEAR R7800 Firmware 1.0.2.36; NETGEAR R9000 Firmware 1.0.2.40; NETGEAR Wndr4300 Firmware 1.0.0.48; NETGEAR Wnr2000 Firmware 1.0.0.58. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000051472/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Routers-PSV-2016-0100
• https://kb.netgear.com/000051472/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Routers-PSV-2016-0100

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