CVE-2019-12510: Auth Bypass Via X-Forwarded-For Header in SOAP API

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-02-24 · updated 2026-06-17
Weakness: CWE-345

Description

In NETGEAR Nighthawk X10-R900 prior to 1.0.4.26, an attacker may bypass all authentication checks on the device's "NETGEAR Genie" SOAP API ("/soap/server_sa") by supplying a malicious X-Forwarded-For header of the device's LAN IP address (192.168.1.1) in every request. As a result, an attacker may modify almost all of the device's settings and view various configuration settings.

Affected products

NETGEAR Nighthawk X10-R9000 Firmware: before 1.0.4.26 — fixed in 1.0.4.26

How to fix

Upgrade to a fixed version: NETGEAR Nighthawk X10-R9000 Firmware 1.0.4.26. Check the vendor advisory for mitigations.

References

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