Description
An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.
References (7)
Scores
CVSS v3
7.8
EPSS
0.0018
EPSS Percentile
39.4%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-459
Status
published
Products (6)
citrix/xenserver
7.0
citrix/xenserver
7.1 cu1
citrix/xenserver
7.5
citrix/xenserver
7.6
debian/debian_linux
9.0
xen/xen
< 4.11.1
Published
Dec 08, 2018
Tracked Since
Feb 18, 2026