CVE-2012-2934: n/a vulnerability

CVE-2012-2934: Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a c...

Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 19:50 UTC (UTC+00:00)

Security readout for executives and security teams

This vulnerability affects certain Xen 4.0 and 4.1 virtualization hosts using older AMD CPUs with 64-bit paravirtualized guests. A user inside a guest could trigger a host hang, causing denial of service for workloads on that host. The source bundle does not show data theft, privilege escalation, or confirmed active exploitation. Exposure is likely limited to legacy Xen 4.0 or 4.1 deployments running 64-bit PV guests on affected older AMD CPUs. Modern Xen versions, non-AMD hosts, non-PV guests, or environments without untrusted guest users are less likely to be exposed, based on the provided evidence. Treat this as a targeted legacy virtualization availability risk. It is most urgent where untrusted tenants share Xen hosts on older AMD hardware. For ordinary modern infrastructure, confirm non-exposure and close with documentation. Mitigation focus: Identify Xen 4.0 and 4.1 hosts running on AMD processors.; Prioritize multi-tenant or untrusted-guest virtualization hosts.; Apply relevant Xen or distribution security updates from vendor advisories..

Prepared: Jun 24, 2026, 12:04 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: Dec 3, 2012, 21:00 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

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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

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