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CVE-2009-4419
Intel Q35, GM45, PM45 Express, Q45, and Q43 Express chipsets in the SINIT Authenticated Code Module (ACM), which allows local users to…
High7.2EPSS 0.43%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.43% · top 63% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
Affected products
n/a
- affected n/a
References (9)
- http://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00021&languageid=en-fr (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1023382 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 37430 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 61248 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://invisiblethingslab.com/resources/misc09/Another%20TXT%20Attack.pdf (opens in a new tab)x_refsource_MISCx_transferred
- ADV-2009-3618 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 37900 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- intel-chipset-sinit-priv-escalation(54963) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://theinvisiblethings.blogspot.com/2009/12/another-txt-attack.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-4419)Record last updated .