CVE-2025-50401 Memory corruption in n/a

Critical 9.8 Published Updated

A buffer overflow in the password parameter allows attackers to execute arbitrary code or cause denial of service on Mercury D196G devices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-50401?

CVE-2025-50401 is a critical memory corruption vulnerability in n/a, published on 16 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Mercury D196G d196gv1-cn-up_2020-01-09_11.21.44 is vulnerable to Buffer Overflow in the function sub_404CAEDC via the parameter password.

Weakness: CWE-120

Which versions are affected by CVE-2025-50401?

It affects 1 product.

Products include Mercurycom D196g Firmware.

How do I fix CVE-2025-50401?

No fix has been published for CVE-2025-50401 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-2025-50401 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-50401 exists.

Sources

Also known as GHSA-4qc8-97p8-5fwr.

Is CVE-2025-50401 in your software?

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