All vulnerabilities

Servers and applications

CVE-2018-18883

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.

Severity
High 8.8
Published
1 Nov 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.5% in the next 30 daysHigher than 39% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • From 4.9.0 up to 4.11.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-18883
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-18883