VULNERABILITY INTELLIGENCE

CVE-2018-19963

CVSS score7.8 HIGH
EPSS probability0.36%
CISA KEVNot currently listed
Published2018-12-08
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.

Weakness classification

  • CWE-617: Reachable Assertion

Primary references