VULNERABILITY INTELLIGENCE

CVE-2018-10853

CVSS score7 HIGH
EPSS probability0.47%
CISA KEVNot currently listed
Published2018-09-11
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.

Weakness classification

  • CWE-250: Execution with Unnecessary Privileges
  • CWE-269: Improper Privilege Management

Primary references