UpHeron
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Servers and applications

CVE-2020-27672

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.

Severity
High 7.0
Published
22 Oct 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • From 3.2.0 up to 4.14.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-27672
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-27672