CVE-2025-12942 Improper input validation in NETGEAR R6260 and R6850
Unauthenticated LAN attackers with MiTM and DNS control can execute arbitrary commands on NETGEAR R6260 and R6850 routers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-12942?
CVE-2025-12942 is a medium-severity command injection vulnerability in Netgear R6260 Firmware, published on 11 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-20
Which versions are affected by CVE-2025-12942?
It affects 2 products.
Products include Netgear R6260 Firmware, Netgear R6850 Firmware.
How do I fix CVE-2025-12942?
No fix has been published for CVE-2025-12942 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-12942 being exploited?
There is no known exploitation of CVE-2025-12942 in the wild and no public exploit code.
Other vulnerabilities in Netgear R6260 Firmware
Sources
Also known as GHSA-83g8-4c46-g95x.