CVE-2025-7771: Code Execution / Escalation of Privileges in ThrottleStop
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 10 public reports, the first from .
- How likely is exploitation in the next 30 days?
- 8.3%
Up from 8.1% on .
EPSS score, percentile 94.9 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 8.7 High
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- 3.0.0.0 and possibly others
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
Code Execution / Escalation of Privileges in ThrottleStop
ThrottleStop.sys, a legitimate driver, exposes two IOCTL interfaces that allow arbitrary read and write access to physical memory via the MmMapIoSpace function. This insecure implementation can be exploited by a malicious user-mode application to patch the running Windows kernel and invoke arbitrary kernel functions with ring-0 privileges. The vulnerability enables local attackers to execute arbitrary code in kernel context, resulting in privilege escalation and potential follow-on attacks, such as disabling security software or bypassing kernel-level protections. ThrottleStop.sys version 3.0.0.0 and possibly others are affected. Apply updates per vendor instructions.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | 3.0.0.0 and possibly others |
Versions not listed are: unknown.
Source: CVE List, as of . About the data.
Weakness
CWE-782, 1 CAPEC
- CWE-782: Exposed IOCTL with Insufficient Access Control
Attack patterns (CAPEC)
- CAPEC-679: Exploitation of Improperly Configured or Implemented Memory Protections
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published |