CVE-2025-49850 Out-of-bounds Read in Write in LS Electric GMWin 4

High 8.4 Published Updated

Heap-based buffer overflow in LS Electric GMWin 4 allows attackers to execute arbitrary code or cause denial of service via malicious PRJ files.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-49850?

CVE-2025-49850 is a high-severity memory corruption vulnerability in LS Electric GMWin 4, published on 17 Jun 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A Heap-based Buffer Overflow vulnerability exists within the parsing of PRJ files. The issues result from the lack of proper validation of user-supplied data, which can result in different memory corruption issues within the application, such as reading and writing past the end of allocated data structures.

Weakness: CWE-122

Which versions are affected by CVE-2025-49850?

How do I fix CVE-2025-49850?

No fix has been published for CVE-2025-49850 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-2025-49850 being exploited?

There is no known exploitation of CVE-2025-49850 in the wild and no public exploit code.

Sources

Also known as GHSA-vgp9-qcv2-338w.

Is CVE-2025-49850 in your software?

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