CVE-2018-21121: NETGEAR GS810EMX Firmware

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by authentication bypass. This affects GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.

Affected products

• NETGEAR GS810EMX Firmware: before 1.0.0.5 (fixed in 1.0.0.5)
• NETGEAR XS512EM Firmware: before 1.0.0.6 (fixed in 1.0.0.6)
• NETGEAR XS724EM Firmware: before 1.0.0.6 (fixed in 1.0.0.6)

Published 2020-04-22. Last modified 2026-06-17.