CVE-2020-6099 Memory corruption in BIMx Desktop Viewer

High 8.8 Published Updated

A heap buffer overflow in Graphisoft BIMx Desktop Viewer allows remote code execution via a specially crafted file.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-6099?

CVE-2020-6099 is a high-severity memory corruption vulnerability in Graphisoft BIMx Desktop Viewer, published on 18 Apr 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An exploitable code execution vulnerability exists in the file format parsing functionality of Graphisoft BIMx Desktop Viewer 2019.2.2328. A specially crafted file can cause a heap buffer overflow resulting in a code execution. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-190, CWE-680

Which versions are affected by CVE-2020-6099?

It affects 1 product.

Products include Graphisoft Bimx Desktop Viewer.

How do I fix CVE-2020-6099?

No fix has been published for CVE-2020-6099 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-2020-6099 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-6099 exists.

Sources

Also known as GHSA-7g8j-9jf2-66wx.

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