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Fencer Vulns
medium 4.1

CVE-2016-7094 json

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denia…

published 2016-09-21 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7974

cvss
4.1
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 33%
public exploits
0
none known

Summary

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update.

Patch / fix

  • xen Debian 14, Debian 13, Debian 12 4.8.0~rc3-1

debian advisories DEBIAN-CVE-2016-7094

  • xen Ubuntu 14.04 LTS 4.4.2-0ubuntu0.14.04.7
  • xen Ubuntu 16.04 LTS 4.6.0-1ubuntu4.2

ubuntu advisories UBUNTU-CVE-2016-7094

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_21-27.1
  • xen SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 4.4.4_08-40.2
  • xen SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 4.5.3_10-20.1
  • xen SLES for SAP 12, SLES 12-LTSS 4.4.4_04-22.22.2
  • xen SLES 11 SP2-LTSS 4.1.6_08-29.1

suse advisories SUSE-SU-2016:2725-1SUSE-SU-2016:2533-1SUSE-SU-2016:2528-1SUSE-SU-2016:2507-1SUSE-SU-2016:2473-1

  • xen openSUSE Tumbleweed 4.7.0_12-1.3

opensuse advisories openSUSE-SU-2024:10196-1

  • xen Alpine 3.24, Alpine 3.23, Alpine 3.22 +17 more 4.7.0-r1
  • xen Alpine 3.4 4.6.3-r2

alpine advisories ALPINE-CVE-2016-7094

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-2016-7094 updated cvss 6.3

xen: x86 HVM: Overflow of sh_ctxt->seg_reg[]

  • 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

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 4.1 CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 1.5 AV:L/AC:M/Au:S/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.