CVE-2012-0218: n/a vulnerability

CVE-2012-0218: Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction...

Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 18:16 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Xen virtualization flaw that can let a user inside an affected paravirtualized guest crash that guest. The source bundle describes denial of service, not data theft or host takeover. Business urgency is highest for environments still running Xen 3.4, 4.0, or 4.1 with PV guests. Exposure is likely limited to legacy Xen deployments using affected 3.4, 4.0, or 4.1 versions with paravirtualized guests. Systems on other Xen versions, unsupported package branches, or non-PV configurations need vendor confirmation because the bundle does not enumerate them. Treat as a legacy virtualization availability risk. It is not evidence of active exploitation or data compromise, but affected platforms are old enough that remediation should usually be handled through upgrade, retirement, or vendor-supported patching. Mitigation focus: Identify any Xen 3.4, 4.0, or 4.1 hypervisors still in service.; Review Xen, Debian, and Gentoo advisories for fixed packages or supported upgrade guidance.; Prioritize upgrading or retiring unsupported Xen branches..

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

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2012-0218 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

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

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

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

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.