What’s Vulnerable › Vulnerabilities

CVE-2017-18738

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-23 · updated 2026-06-17
• Weakness: CWE-787

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects EX6150v2 before 1.0.1.54, R6400 before 1.0.1.24, R6400v2 before 1.0.2.32, R6700 before 1.0.1.22, R6900 before 1.0.1.22, R7000 before 1.0.9.10, R7000P before 1.2.0.22, R6900P before 1.2.0.22, R7100LG before 1.0.0.32, R7300DST before 1.0.0.54, R7900 before 1.0.1.18, R8000 before 1.0.3.48, R8300 before 1.0.2.106, R8500 before 1.0.2.106, R6100 before 1.0.1.16, WNDR4300v2 before 1.0.0.48, WNDR4500v3 before 1.0.0.48, and WNR2000v5 before 1.0.0.58.

Affected products

• Netgear EX6150: before 1.0.1.54 — fixed in 1.0.1.54
• NETGEAR R6100 Firmware: before 1.0.1.16 — fixed in 1.0.1.16
• NETGEAR R6400 Firmware: before 1.0.1.24; before 1.0.2.32 — fixed in 1.0.1.24, 1.0.2.32
• NETGEAR R6700: before 1.0.1.22 — fixed in 1.0.1.22
• NETGEAR R6900 Firmware: before 1.0.1.22 — fixed in 1.0.1.22
• NETGEAR R6900P Firmware: before 1.2.0.22 — fixed in 1.2.0.22
• NETGEAR R7000: before 1.0.9.10 — fixed in 1.0.9.10
• NETGEAR R7000P: before 1.2.0.22 — fixed in 1.2.0.22
• NETGEAR R7100Lg Firmware: before 1.0.0.32 — fixed in 1.0.0.32
• NETGEAR R7300Dst Firmware: before 1.0.0.54 — fixed in 1.0.0.54
• NETGEAR R7900 Firmware: before 1.0.1.18 — fixed in 1.0.1.18
• NETGEAR R8000 Firmware: before 1.0.3.48 — fixed in 1.0.3.48
• NETGEAR R8300 Firmware: before 1.0.2.106 — fixed in 1.0.2.106
• NETGEAR R8500 Firmware: before 1.0.2.106 — fixed in 1.0.2.106
• NETGEAR Wndr4300 Firmware: before 1.0.0.48 — fixed in 1.0.0.48
• Netgear WNDR4500: 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 EX6150 1.0.1.54; NETGEAR R6100 Firmware 1.0.1.16; NETGEAR R6400 Firmware 1.0.1.24, 1.0.2.32; NETGEAR R6700 1.0.1.22; NETGEAR R6900 Firmware 1.0.1.22; NETGEAR R6900P Firmware 1.2.0.22; NETGEAR R7000 1.0.9.10; NETGEAR R7000P 1.2.0.22; NETGEAR R7100Lg Firmware 1.0.0.32; NETGEAR R7300Dst Firmware 1.0.0.54; NETGEAR R7900 Firmware 1.0.1.18; NETGEAR R8000 Firmware 1.0.3.48. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000051517/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Extenders-PSV-2017-0706
• https://kb.netgear.com/000051517/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Extenders-PSV-2017-0706

Get alerted when CVE-2017-18738 or the next vulnerability affects your stack