CVE-2017-12134

highpriority · track · 35EPSS 0.005 · 42 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.50% (42nd) EPSS

CVSS 7.2 · high

Is it mine?

15 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.

cvss

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

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.08.8highCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2 · impact 6

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Csecondary · FSTEC (BDU) RU

v3.08.1highCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-682USprimaryCWE-264US

affected products (15)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
The Linux Foundation Xen≤ .fstec_bduRU
The Linux Foundation XenServer≤ 7.1fstec_bduRU
The Linux Foundation XenServer≤ 6.2fstec_bduRU
The Linux Foundation XenServer≤ 7.0fstec_bduRU
The Linux Foundation XenServer≤ 6.5fstec_bduRU
The Linux Foundation XenServer≤ 6.0.2fstec_bduRU
The Linux Foundation XenServer≤ 7.2fstec_bduRU
citrix xenserver= 6.0.2nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
citrix xenserver= 6.2.0nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
citrix xenserver= 6.5nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
citrix xenserver= 7.0nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
citrix xenserver= 7.1nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
citrix xenserver= 7.2nvdUScpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*
xen xenall versionsnvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

also known as (6)

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 2017-08-24modified 2026-06-17

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+249 more

references (30)

External citations — patches, advisories, analysis.

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