UpHeron
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Servers and applications

CVE-2016-7154

Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.

Severity
Medium 6.7
Published
21 Sept 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.5% in the next 30 daysHigher than 43% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Use after free (CWE-416)
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 4.4.0
  • Version 4.4.1
  • Version 4.4.2
  • Version 4.4.3
  • Version 4.4.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-7154
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-7154