CVE-2026-94424 Moore Threads MTT S80 Driver Package IOCTL mtdispkm64.sys sub_140001000 heap-based overflow
A local attacker can exploit a heap-based buffer overflow in the Moore Threads MTT S80 driver to achieve privilege escalation or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-94424?
CVE-2026-94424 is a critical memory corruption vulnerability in Moore Threads MTT S80 Driver Package, published on 21 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been found in Moore Threads MTT S80 Driver Package up to 340.150. Impacted is the function sub_140001000 in the library mtdispkm64.sys of the component IOCTL Handler. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-94424?
How do I fix CVE-2026-94424?
No fix has been published for CVE-2026-94424 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-2026-94424 being exploited?
There is no known exploitation of CVE-2026-94424 in the wild and no public exploit code.
Sources
Also known as GHSA-wj8c-932v-h34p.