CVE-2013-1964: n/a vulnerability

CVE-2013-1964: Xen 4.0.x and 4.1.x incorrectly releases a grant reference when releasing a non-v1, non-transitive grant, w...

Xen 4.0.x and 4.1.x incorrectly releases a grant reference when releasing a non-v1, non-transitive grant, which allows local guest administrators to cause a denial of service (host crash), obtain sensitive information, or possibly have other impacts via unspecified vectors.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 15:20 UTC (UTC+00:00)

Security readout for executives and security teams

A flaw in Xen 4.0.x and 4.1.x could let an administrator inside a guest VM destabilize the host hypervisor. Reported impact includes host crash, sensitive information exposure, and possibly other effects. This matters most for multi-tenant or delegated VM environments. Exposure is limited to environments running affected Xen 4.0.x or 4.1.x hosts where guest administrators are untrusted or semi-trusted. The bundle also cites downstream Linux distribution advisories, suggesting packaged Xen deployments needed updates. Treat this as high priority for legacy Xen estates, especially hosting, lab, or customer-managed VM platforms. The business risk is host outage and possible cross-boundary data exposure from a guest administrator. Mitigation focus: Identify Xen hosts running 4.0.x or 4.1.x.; Apply Xen or distribution security updates from the relevant vendor advisory.; Prioritize hosts with untrusted guest administrators or multi-tenant workloads..

Prepared: Jun 14, 2026, 22:07 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: May 21, 2013, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

1Source 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

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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