CVE-2017-10920: n/a vulnerability

CVE-2017-10920: The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, wh...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 17:50 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2017-10920 is a Xen hypervisor flaw in grant-table handling. A user inside a guest VM could trigger denial of service or potentially gain privileged access on the host. For organizations relying on Xen isolation, this is a serious guest-to-host boundary risk. Exposure is most likely on systems running Xen through 4.8.x, including distribution-packaged Xen referenced by Debian and Gentoo advisories. The bundle does not identify specific CPEs or complete affected package versions. Treat this as high priority where Xen hosts run untrusted or business-critical guests. The issue affects the VM isolation boundary and can impact host availability or privilege separation. Mitigation focus: Apply vendor Xen updates addressing XSA-224 and CVE-2017-10920.; Review Xen XSA-224 and applicable Debian or Gentoo advisories.; Prioritize multi-tenant or untrusted-guest Xen hosts first..

Prepared: Jun 13, 2026, 04:25 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 5, 2017, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
GLSA-201708-03CVE reference · vendor-advisory, x_refsource_GENTOO
https://xenbits.xen.org/xsa/advisory-224.htmlCVE reference · x_refsource_CONFIRM
GLSA-201710-17CVE reference · vendor-advisory, x_refsource_GENTOO

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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