CVE-2015-8551

mediumpriority · track · 24EPSS 0.005 · 39 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.45% (39th) EPSS
CVSS 4.7 · medium
Is it mine?
15 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."

01

cvss

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

6.0
010

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

v2.04.7mediumAV:L/AC:M/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 3.4 · impact 6.9
v3.16mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.5 · impact 4
v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

affected products (15)

Products and version ranges known to be affected.

04

also known as (3)

Other names and identifiers for this entity.

05

sources

Which sources assert this record, and when.

published 2016-04-13modified 2026-06-17
07

references (36)

External citations — patches, advisories, analysis.

scry

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