CVE-2026-12781 EaseUS Partition Master Kernel Driver epmntdrv.sys access control
Local attackers can exploit improper access controls in the EaseUS Partition Master kernel driver to escalate privileges.
- 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-2026-12781?
CVE-2026-12781 is a high-severity vulnerability in EaseUS Partition Master, published on 21 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was identified in EaseUS Partition Master up to 14.5. The affected element is an unknown function in the library epmntdrv.sys of the component Kernel Driver. The manipulation leads to improper access controls. The attack needs to be performed locally. The exploit is publicly available and might be used. You should upgrade the affected component. The vendor explains: "We have confirmed that this issue was present only in older versions of the product. Our product has since been updated, and the issue has been resolved in the latest version, so it no longer exists."
Which versions are affected by CVE-2026-12781?
How do I fix CVE-2026-12781?
No fix has been published for CVE-2026-12781 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-12781 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-12781 exists.
Sources
Also known as GHSA-5497-893c-j3pf.