THREATPORT/VULNERABILITY/CVE-2020-12138
HIGH SEVERITY

CVE-2020-12138

Atillk64 vulnerability

CVSS
8.8
EPSS
3.3%
EPSS pct
87th
Exploited
No known
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.
Affected vendor
Amd
Affected product
Atillk64
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2020-04-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2020-12138

  • Confirm whether Amd Atillk64 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-12138.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-12138

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-12138 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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