CVE-2025-4117 Netgear JWNR2000v2 sub_41A914 buffer overflow

Medium 5.1 Published Updated

A buffer overflow in the Netgear JWNR2000v2 router allows attackers to execute arbitrary code via the host argument.

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-2025-4117?

CVE-2025-4117 is a medium-severity memory corruption vulnerability in Netgear JWNR2000v2, published on 30 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability, which was classified as critical, was found in Netgear JWNR2000v2 1.0.0.11. This affects the function sub_41A914. The manipulation of the argument host leads to buffer overflow. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-4117?

It affects 1 product.

Products include Netgear Jwnr2000 Firmware.

How do I fix CVE-2025-4117?

No fix has been published for CVE-2025-4117 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-4117 being exploited?

There is no known exploitation of CVE-2025-4117 in the wild and no public exploit code.

Sources

Also known as GHSA-v74x-4c9w-5ccp.

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