CVE-2018-19962

mediumpriority · track · 31EPSS 0.004 · 35 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.41% (35th) EPSS

CVSS 6.9 · medium

Is it mine?

11 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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 small IOMMU mappings are unsafely combined into larger ones.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.8

v2.06.9mediumAV:L/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.4 · impact 10

v3.07.8highCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.1 · impact 6

v3.07.1highCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.8highAV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimaryCWE-264US

affected products (11)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
The Linux Foundation Xen≤ 4.11.1fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.6 «Смоленск»fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 9fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 8fstec_bduRU
citrix xenserver= 7.0nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
citrix xenserver= 7.1nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
citrix xenserver= 7.5nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
citrix xenserver= 7.6nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
xen xen≤ 4.11.1nvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2018-12-08modified 2026-06-17

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+19411 more

references (33)

External citations — patches, advisories, analysis.

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