CVE-2025-4142 Netgear EX6200 sub_3C8EC buffer overflow
Remote attackers can trigger a buffer overflow in the Netgear EX6200 via the host argument, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-4142?
CVE-2025-4142 is a high-severity memory corruption vulnerability in Netgear Ex6200 Firmware, published on 30 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in Netgear EX6200 1.0.3.94 and classified as critical. This vulnerability affects the function sub_3C8EC. The manipulation of the argument host leads to buffer overflow. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-4142?
It affects 1 product.
Products include Netgear Ex6200 Firmware.
How do I fix CVE-2025-4142?
No fix has been published for CVE-2025-4142 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-2025-4142 being exploited?
There is no known exploitation of CVE-2025-4142 in the wild and no public exploit code.
Other vulnerabilities in Netgear Ex6200 Firmware
Sources
Also known as GHSA-gxrr-m392-473j.