CVE-2025-4148 Netgear EX6200 sub_503FC 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-2025-4148?
CVE-2025-4148 is a high-severity memory corruption vulnerability in Netgear Ex6200 Firmware, published on 1 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Netgear EX6200 1.0.3.94 and classified as critical. Affected by this issue is the function sub_503FC. The manipulation of the argument host leads to buffer overflow. The attack may be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-4148?
It affects 1 product.
Products include Netgear Ex6200 Firmware.
How do I fix CVE-2025-4148?
No fix has been published for CVE-2025-4148 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-2025-4148 being exploited?
There is no known exploitation of CVE-2025-4148 in the wild and no public exploit code.
Other vulnerabilities in Netgear Ex6200 Firmware
Sources
Also known as GHSA-fq8g-w74w-m345.