UpHeron
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Servers and applications

CVE-2014-6268

The evtchn_fifo_set_pending function in Xen 4.4.x allows local guest users to cause a denial of service (host crash) via vectors involving an uninitialized FIFO-based event channel control block when (1) binding or (2) moving an event to a different VCPU.

Severity
Medium 4.9
Published
12 Jan 2015
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.4% in the next 30 daysHigher than 36% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Needs local access · No login needed
Attacker can
Take it down
CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:C
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.4.0-rc1
  • Version 4.4.0
  • Version 4.4.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2014-6268
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2014-6268