CVE-2009-4419: n/a vulnerability

CVE-2009-4419: Intel Q35, GM45, PM45 Express, Q45, and Q43 Express chipsets in the SINIT Authenticated Code Module (ACM),...

Intel Q35, GM45, PM45 Express, Q45, and Q43 Express chipsets in the SINIT Authenticated Code Module (ACM), which allows local users to bypass the Trusted Execution Technology protection mechanism and gain privileges by modifying the MCHBAR register to point to an attacker-controlled region, which prevents the SENTER instruction from properly applying VT-d protection while an MLE is being loaded.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 07:01 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-4419 is a legacy Intel chipset issue affecting the SINIT Authenticated Code Module used by Trusted Execution Technology. A local attacker could interfere with TXT protections during trusted launch and potentially gain privileges. The public bundle does not provide CVSS scoring, affected OEM systems, or confirmed active exploitation. Exposure is most likely in older endpoints or servers using the named Intel chipsets with TXT/SINIT ACM enabled or relied upon for trusted launch. The bundle does not identify specific OEM models, operating systems, firmware versions, or cloud exposure. Treat this as a legacy hardware trust issue. It is not shown as actively exploited, but it can weaken security assumptions on systems relying on Intel TXT. Focus on asset discovery and vendor guidance before assigning emergency response. Mitigation focus: Review Intel advisory INTEL-SA-00021 and applicable OEM firmware guidance.; Inventory systems with the named Intel chipsets and TXT usage.; Prioritize remediation where TXT supports security boundaries or attestation workflows..

Prepared: Jun 28, 2026, 09:59 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 24, 2009, 17:00 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
intel-chipset-sinit-priv-escalation(54963)CVE reference · vdb-entry, x_refsource_XF

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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