All vulnerabilities

Servers and applications

CVE-2018-19963

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.

Severity
High 7.8
Published
8 Dec 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.4% in the next 30 daysHigher than 30% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.11.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-19963
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-19963