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TI-2007-05414 Aliases CVE-2007-5633GHSA-x4vw-hwxw-9rqp

Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows…

Priority LOW 33Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00935 61st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_vista:*:*:x64:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:a:almico:speedfan:4.33:*:*:*:*:*:*:*4.33VulnerableAlmico
  • cpe:2.3:o:microsoft:windows_vista:*:*:x64:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:a:almico:speedfan:4.33:*:*:*:*:*:*:* Versions 4.33 Vulnerable ·Almico

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2007-5633
  2. 2026-10-03 Alias added: GHSA-x4vw-hwxw-9rqp

References

Exploit 1

Other 2

  • TI-2020-17122 There is a local privilege escalation vulnerability in Alfredo Milani Comparetti SpeedFan… CVSS 3.1HIGH 7.8
  • TI-2007-05415 Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows… CVSS 2.0MEDIUM 4.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences