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 arbitrary MSRs, and gain…

published October 23, 2007

CVSS
—
EPSS
1%
Percentile
60.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00935 · 60.2th percentile
Published
2007-10-23T17:00Z
EPSS history
Timeline
  • 23 OCT 17:00Z
    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…
    cvelistv5