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Fencer Intel
high 7.8

CVE-2016-10013 json

Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emul…

published 2017-01-26 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-1210

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emulation.

Patch / fix

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

debian advisories DEBIAN-CVE-2016-10013

  • 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-2016-10013

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 SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 4.2.5_21-35.1
  • xen SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 4.4.4_12-46.1
  • xen SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 4.5.5_04-22.6.1
  • xen SLES for SAP 12 SP2, SLES 12 SP2, SLED 12 SP2 +1 more 4.7.1_04-28.1
  • xen SLES for SAP 12, SLES 12-LTSS 4.4.4_05-22.28.2

suse advisories SUSE-SU-2017:0718-1SUSE-SU-2016:3241-1SUSE-SU-2016:3221-1SUSE-SU-2016:3207-1SUSE-SU-2016:3208-1

  • xen openSUSE Tumbleweed 4.15.1_01-1.2

opensuse advisories openSUSE-SU-2024:11520-1

  • xen Alpine 3.24, Alpine 3.23, Alpine 3.22 +17 more 4.7.1-r4
  • xen Alpine 3.3 4.6.3-r5
  • xen Alpine 3.4 4.6.3-r7

alpine advisories ALPINE-CVE-2016-10013

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-2016-10013 updated cvss 7.4

xen: x86: Mishandling of SYSCALL singlestep during emulation (XSA-204)

  • 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

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel 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.