Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows…
Priority LOW 23CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, does not properly check a buffer during an IOCTL 0x9c402420 call, which allows local users to cause a denial of service (machine crash) and possibly gain privileges via unspecified vectors.
Why it matters now
EPSS 0.00394 33rd 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-5634
- 2026-10-03 Alias added: GHSA-3f25-9wj6-fhrv
References
More Almico Speedfan vulnerabilities
- TI-2020-17122 There is a local privilege escalation vulnerability in Alfredo Milani Comparetti SpeedFan… CVSS 3.1HIGH 7.8
- TI-2007-05414 Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows… CVSS 2.0HIGH 7.2
Sources
- CVE-2007-5634 · CVE Program
- CVE-2007-5634 · NVD
- FIRST EPSS
- GHSA-3f25-9wj6-fhrv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences