CVE-2020-12138

8.8 highEPSS 3.3%

High (8.8) in amd atillk64. EPSS 3.3% chance of exploitation in the next 30 days.

AMD ATI atillk64.sys 5.11.9.0 allows low-privileged users to interact directly with physical memory by calling one of several driver routines that map physical memory into the virtual address space of the calling process. This could enable low-privileged users to achieve NT AUTHORITY\SYSTEM privileges via a DeviceIoControl call associated with MmMapIoSpace, IoAllocateMdl, MmBuildMdlForNonPagedPool, or MmMapLockedPages.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.3% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-862
Published: 2020-04-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

amd:atillk64

References

https://eclypsium.com/2019/11/12/mother-of-all-drivers/
https://h0mbre.github.io/atillk64_exploit/
https://eclypsium.com/2019/11/12/mother-of-all-drivers/
https://h0mbre.github.io/atillk64_exploit/

Check your stack JSON