What’s Vulnerable › Vulnerabilities

CVE-2017-18756

• Severity: high (CVSS 8.8 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: 2020-04-22 · updated 2026-06-17

Description

Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects D6220 before 1.0.0.32, D6400 before 1.0.0.66, D8500 before 1.0.3.35, DGN2200Bv4 before 1.0.0.94, DGN2200v4 before 1.0.0.94, R6250 before 1.0.4.14, R6300v2 before 1.0.4.18, R6400 before 1.01.32, R6400v2 before 1.0.2.44, R6700 before 1.0.1.36, R6900 before 1.0.1.30, R6900P before 1.3.0.8, R7000 before 1.0.9.14, R7000P before 1.3.0.8, R7100LG before 1.0.0.34, R7900 before 1.0.2.4, R8000 before 1.0.4.2, WN2500RPv2 before 1.0.1.50, WNDR3400v3 before 1.0.1.14, and WNDR4000 before 1.0.2.10.

Affected products

• NETGEAR D6220 Firmware: before 1.0.0.32 — fixed in 1.0.0.32
• Netgear D6400: before 1.0.0.66 — fixed in 1.0.0.66
• NETGEAR D8500 Firmware: before 1.0.3.35 — fixed in 1.0.3.35
• NETGEAR Dgn2200 Firmware: before 1.0.0.94 — fixed in 1.0.0.94
• Netgear DGN2200B: before 1.0.0.94 — fixed in 1.0.0.94
• NETGEAR R6250 Firmware: before 1.0.4.14 — fixed in 1.0.4.14
• NETGEAR R6300 Firmware: before 1.0.4.18 — fixed in 1.0.4.18
• NETGEAR R6400 Firmware: before 1.01.32; before 1.0.2.44 — fixed in 1.0.2.44, 1.01.32
• NETGEAR R6700: before 1.0.1.36 — fixed in 1.0.1.36
• NETGEAR R6900 Firmware: before 1.0.1.30 — fixed in 1.0.1.30
• NETGEAR R6900P Firmware: before 1.3.0.8 — fixed in 1.3.0.8
• NETGEAR R7000: before 1.0.9.14 — fixed in 1.0.9.14
• NETGEAR R7000P: before 1.3.0.8 — fixed in 1.3.0.8
• NETGEAR R7100Lg Firmware: before 1.0.0.34 — fixed in 1.0.0.34
• NETGEAR R7900 Firmware: before 1.0.2.4 — fixed in 1.0.2.4
• NETGEAR R8000 Firmware: before 1.0.4.2 — fixed in 1.0.4.2
• NETGEAR Wn2500Rp Firmware: before 1.0.1.50 — fixed in 1.0.1.50
• NETGEAR Wndr3400 Firmware: before 1.0.1.14 — fixed in 1.0.1.14
• NETGEAR Wndr4000 Firmware: before 1.0.2.10 — fixed in 1.0.2.10

How to fix

Upgrade to a fixed version: NETGEAR D6220 Firmware 1.0.0.32; Netgear D6400 1.0.0.66; NETGEAR D8500 Firmware 1.0.3.35; NETGEAR Dgn2200 Firmware 1.0.0.94; Netgear DGN2200B 1.0.0.94; NETGEAR R6250 Firmware 1.0.4.14; NETGEAR R6300 Firmware 1.0.4.18; NETGEAR R6400 Firmware 1.0.2.44, 1.01.32; NETGEAR R6700 1.0.1.36; NETGEAR R6900 Firmware 1.0.1.30; NETGEAR R6900P Firmware 1.3.0.8; NETGEAR R7000 1.0.9.14. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000051492/Security-Advisory-for-Security-Misconfiguration-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2756
• https://kb.netgear.com/000051492/Security-Advisory-for-Security-Misconfiguration-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2756

Get alerted when CVE-2017-18756 or the next vulnerability affects your stack