UpHeron
All vulnerabilities

Servers and applications

CVE-2020-27674

An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.

Severity
Medium 5.3
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
  • Every version up to 4.14.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-27674
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-27674