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Servers and applications

CVE-2016-4962

The libxl device-handling in Xen 4.6.x and earlier allows local OS guest administrators to cause a denial of service (resource consumption or management facility confusion) or gain host OS privileges by manipulating information in guest controlled areas of xenstore.

Severity
Medium 6.7
Published
7 Jun 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.4% in the next 30 daysHigher than 34% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
CWE-264
Attack
Needs local access · Needs an administrator account · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.6.1
  • Version 4.6.0
  • Version 4.5.3
  • Version 4.5.2
All 17 release lines
  • Version 4.3.0
  • Version 4.3.1
  • Version 4.3.2
  • Version 4.3.3
  • Version 4.3.4
  • Version 4.4.0-rc1
  • 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 4.6.0
  • Version 4.6.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-4962
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-4962