UpHeron
All vulnerabilities

Servers and applications

CVE-2017-10920

The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.

Severity
Critical 10.0
Published
5 Jul 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.5% in the next 30 daysHigher than 85% 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 4.8.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-10920
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-10920