CVE-2007-5633

EXPLOITED

Alfredo Milani Comparetti SpeedFan <4.33 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2007-5633 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including Ruben Santamarta.

AI-analyzed exploit summary The provided text describes a local privilege escalation vulnerability in SpeedFan, allowing arbitrary code execution with SYSTEM privileges. It references a binary exploit hosted on GitLab but does not include actual exploit code.

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.

Exploits (1)

exploitdb WRITEUP VERIFIED
by Ruben Santamarta · textlocalwindows
https://www.exploit-db.com/exploits/30681

The provided text describes a local privilege escalation vulnerability in SpeedFan, allowing arbitrary code execution with SYSTEM privileges. It references a binary exploit hosted on GitLab but does not include actual exploit code.

Classification
Writeup 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Theoretical
Target: SpeedFan (version not specified)
No auth needed
Prerequisites: Local access to the target system · Vulnerable version of SpeedFan installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/37298
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/41842
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/26123
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27312

Scores

EPSS 0.0024
EPSS Percentile 47.7%

Details

VulnCheck KEV 2018-03-06
Status published
Products (1)
almico/speedfan 4.33
Published Oct 23, 2007
Tracked Since Feb 18, 2026