CVE-2021-23138 WECON LeviStudioU

High 7.8 Published 14 Jan 2022 Updated 16 Apr 2025

A stack-based buffer overflow in WECON LeviStudioU allows remote attackers to execute arbitrary code.

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-2021-23138?

CVE-2021-23138 is a high-severity memory corruption vulnerability in WECON LeviStudioU, published on 14 Jan 2022. 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

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2021-23138?

It affects 1 product.

Products include We-Con Levistudiou.

How do I fix CVE-2021-23138?

No fix has been published for CVE-2021-23138 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-2021-23138 being exploited?

There is no known exploitation of CVE-2021-23138 in the wild and no public exploit code.

Sources

Also known as GHSA-rvhx-r576-jx25.