CVE-2015-7812: n/a vulnerability

CVE-2015-7812: The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local gue...

The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 07:58 UTC (UTC+00:00)

Security readout for executives and security teams

A user inside a guest VM could trigger a Xen hypervisor bug that crashes the host on affected ARM deployments. The business impact is service outage across VMs on that host, not data theft based on the provided sources. Exposure is most likely on ARM systems running Xen 4.4.x through 4.6.x, especially multi-tenant or untrusted-guest environments. The supplied affected-product metadata is incomplete, so verify against Xen XSA-145 and distribution advisories. Treat this as urgent for ARM Xen environments hosting untrusted workloads. The likely worst case is a host crash that disrupts multiple services, but the source bundle does not show data compromise or active exploitation. Mitigation focus: Review Xen XSA-145 and apply the vendor-recommended Xen update or patch.; Apply relevant Fedora, Debian, or Gentoo security updates if using those packages.; Prioritize hosts running ARM Xen with untrusted or customer-controlled guests..

Prepared: Jun 13, 2026, 21:45 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

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 17, 2015, 15:00 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

2Source 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-201604-03CVE 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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