All vulnerabilities

Servers and applications

CVE-2018-7540

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

Severity
Medium 6.5
Published
27 Feb 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.4% in the next 30 daysHigher than 37% of CVEs. EPSS by FIRST, 11 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Every version up to 4.10.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-7540
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-7540