CVE-2025-12942: Improper input validation in NETGEAR R6260 and R6850

Published Nov 11, 2025
·
Updated

Improper Input Validation vulnerability in NETGEAR R6260 and NETGEAR R6850 allows unauthenticated attackers connected to LAN with ability to perform MiTM attacks and control over DNS Server to perform command execution.This issue affects R6260: through 1.1.0.86; R6850: through 1.1.0.86.

Affected Software

6 affected components
Netgear R6260<1.1.0.86
Netgear R6850<1.1.0.86
All of the following
Netgear R6260 Firmware<1.1.0.86
Netgear R6260
All of the following
Netgear R6850 Firmware<1.1.0.86
Netgear R6850

Remediation

Information

Devices with automatic updates enabled may already have this patch applied. If not, please check the firmware version and update to the latest. Fixed in: R6260 Firmware Version 1.1.0.88 or later R6850 Firmware Version 1.1.0.88 or later

Event History

Nov 11, 2025
CVE Published
via MITRE·04:17 PM
Data Sourced
via MITRE·04:17 PM
RemedyDescriptionWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-12942?

CVE-2025-12942 is considered a high severity vulnerability as it allows unauthenticated attackers to perform command execution through improper input validation.

2

How do I fix CVE-2025-12942?

To fix CVE-2025-12942, you should update the firmware of your NETGEAR R6260 and R6850 devices to the latest version provided by NETGEAR.

3

Who is affected by CVE-2025-12942?

CVE-2025-12942 affects NETGEAR R6260 and R6850 routers running versions prior to 1.1.0.86.

4

What types of attacks can be performed due to CVE-2025-12942?

Due to CVE-2025-12942, attackers can execute commands on the device through man-in-the-middle (MiTM) attacks and have control over the DNS server.

5

Is authentication required to exploit CVE-2025-12942?

No, CVE-2025-12942 can be exploited by unauthenticated attackers connected to the LAN.

Contact

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