UpHeron
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Servers and applications

CVE-2016-9385

The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.

Severity
Medium 6.0
Published
23 Jan 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.4% in the next 30 daysHigher than 37% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Needs local access · Needs an administrator account · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.7.1
  • Version 4.7.0
  • Version 4.6.4
  • Version 4.6.3
All 16 release lines
  • Version 4.4.0
  • Version 4.4.1
  • Version 4.4.2
  • Version 4.4.3
  • Version 4.4.4
  • Version 4.5.0
  • Version 4.5.1
  • Version 4.5.2
  • Version 4.5.3
  • Version 4.5.5
  • Version 4.6.0
  • Version 4.6.1
  • Version 4.6.3
  • Version 4.6.4
  • Version 4.7.0
  • Version 4.7.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-9385
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-9385