UpHeron
All vulnerabilities

Servers and applications

CVE-2015-8104

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c.

Severity
Critical 10.0
Published
16 Nov 2015
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.5% in the next 30 daysHigher than 84% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.6.5
  • Version 4.6.4
  • Version 4.6.2
  • Version 4.6.1
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
  • 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
  • Version 4.6.1
  • Version 4.6.2
  • Version 4.6.4
  • Version 4.6.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-8104
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-8104