CVE-2025-8854 bullet3 VHACD utility: stack-based buffer overflow in OFF parser (LoadOFF)

High 8.4 Published Updated

Remote attackers can execute arbitrary code via a crafted OFF file due to a stack-based buffer overflow in the Bullet3 VHACD utility.

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-2025-8854?

CVE-2025-8854 is a high-severity memory corruption vulnerability in bulletphysics bullet3, published on 11 Aug 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

Stack-based buffer overflow in LoadOFF in bulletphysics bullet3 before 3.26 on all platforms allows remote attackers to execute arbitrary code via a crafted OFF file with an overlong initial token processed by the VHACD test utility or invoked indirectly through PyBullet's vhacd function.

Weakness: CWE-787, CWE-120

Which versions are affected by CVE-2025-8854?

It affects 1 product.

Products include Bulletphysics Pybullet.

How do I fix CVE-2025-8854?

No fix has been published for CVE-2025-8854 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-2025-8854 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8854 exists.

Sources

Also known as GHSA-g93w-7xh8-gh45.

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