VULNERABILITY INTELLIGENCE

CVE-2018-19966

CVSS score8.8 HIGH
EPSS probability0.44%
CISA KEVNot currently listed
Published2018-12-08
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.

Weakness classification

  • CWE-436: Interpretation Conflict

Primary references