CVE-2009-1542: n/a vulnerability

CVE-2009-1542: The Virtual Machine Monitor (VMM) in Microsoft Virtual PC 2004 SP1, 2007, and 2007 SP1, and Microsoft Virtu...

The Virtual Machine Monitor (VMM) in Microsoft Virtual PC 2004 SP1, 2007, and 2007 SP1, and Microsoft Virtual Server 2005 R2 SP1, does not enforce CPU privilege-level requirements for all machine instructions, which allows guest OS users to execute arbitrary kernel-mode code and gain privileges within the guest OS via a crafted application, aka "Virtual PC and Virtual Server Privileged Instruction Decoding Vulnerability."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:20 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw affects legacy Microsoft virtualization products. A user inside a guest operating system could run a crafted application to gain kernel-level privileges within that guest. The source bundle does not indicate host escape or active exploitation. Exposure is likely limited to environments still running Microsoft Virtual PC 2004 SP1, Virtual PC 2007/2007 SP1, or Virtual Server 2005 R2 SP1, especially legacy labs or hosted guest systems with non-admin users. Treat as a targeted legacy exposure issue. Prioritize remediation where affected virtualization hosts still support business systems or shared guest environments. Lower urgency if these products are absent. Mitigation focus: Apply the Microsoft MS09-033 security update where the affected products are present.; Check Microsoft guidance for any product-specific update prerequisites or replacement guidance.; Restrict untrusted users from running applications inside affected guests until remediated..

Prepared: Jun 28, 2026, 10:26 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 15, 2009, 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

3Source 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
MS09-033CVE reference · vendor-advisory, x_refsource_MS
oval:org.mitre.oval:def:6166CVE reference · vdb-entry, signature

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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