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Fencer Vulns
medium 6.5

CVE-2016-9816 json

Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving an asynchronous abort whi…

published 2017-02-27 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10616

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving an asynchronous abort while at EL2.

Patch / fix

  • xen Debian 14, Debian 13, Debian 12 4.8.0-1

debian advisories DEBIAN-CVE-2016-9816

  • xen Ubuntu 14.04 LTS 4.4.2-0ubuntu0.14.04.9
  • xen Ubuntu 16.04 LTS 4.6.0-1ubuntu4.3

ubuntu advisories UBUNTU-CVE-2016-9816

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xen Alpine 3.24, Alpine 3.23, Alpine 3.22 +17 more 4.7.1-r3
  • xen Alpine 3.3 4.6.3-r4
  • xen Alpine 3.4 4.6.3-r6

alpine advisories ALPINE-CVE-2016-9816

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-9816 updated cvss 6.3

xen: ARM guests may induce host asynchronous abort (XSA-201)

  • Red Hat Enterprise Linux 5 xen
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.