UpHeron
All vulnerabilities

Servers and applications

CVE-2014-4021

Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.

Severity
Low 2.7
Published
18 Jun 2014
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.7% in the next 30 daysHigher than 53% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
From the same local network · Needs a login
Attacker can
Read some data
CVSS vector
AV:A/AC:L/Au:S/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.4.0
  • Version 4.4.0-rc1
  • Version 4.3.1
  • Version 4.3.0
All 24 release lines
  • Version 3.2.0
  • Version 3.2.1
  • Version 3.2.2
  • Version 3.2.3
  • Version 4.0.0
  • Version 4.0.1
  • Version 4.0.2
  • Version 4.0.3
  • Version 4.0.4
  • Version 4.1.0
  • Version 4.1.1
  • Version 4.1.2
  • Version 4.1.3
  • Version 4.1.4
  • Version 4.1.5
  • Version 4.1.6.1
  • Version 4.2.0
  • Version 4.2.1
  • Version 4.2.2
  • Version 4.2.3
  • Version 4.3.0
  • Version 4.3.1
  • Version 4.4.0-rc1
  • Version 4.4.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2014-4021
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2014-4021