UpHeron
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Servers and applications

CVE-2015-7812

The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface.

Severity
Medium 4.9
Published
17 Nov 2015
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-254
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 4.6.0
  • Version 4.5.2
  • Version 4.5.1
  • Version 4.5.0
All 8 release lines
  • Version 4.4.0
  • Version 4.4.1
  • Version 4.4.2
  • Version 4.4.3
  • Version 4.5.0
  • Version 4.5.1
  • Version 4.5.2
  • Version 4.6.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-7812
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-7812