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CVE-2007-5633
Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, allows local users to read or write…
High7.2EPSS 0.94%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, allows local users to read or write arbitrary MSRs, and gain privileges and load unsigned drivers, via the (1) IOCTL_RDMSR 0x9C402438 and (2) IOCTL_WRMSR 0x9C40243C IOCTLs to \Device\speedfan, as demonstrated by an IOCTL_WRMSR action on MSR_LSTAR.
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)
- 0.94% · top 39% of all CVEs (3 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
- n/a
Affected products
n/a
- affected n/a
References (6)
- speedfan-ioctl-privilege-escalation(37298) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 41842 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://www.reversemode.com/index.php?option=com_content&task=view&id=42&Itemid=1 (opens in a new tab)x_refsource_MISCx_transferred
- 26123 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 27312 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.bugtrack.almico.com/view.php?id=987 (opens in a new tab)x_refsource_CONFIRMx_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-2007-5633)Record last updated .