Code Execution / Escalation of Privileges in ThrottleStop
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TechPowerUp | ThrottleStop | 3.0.0.0 and possibly others | — | No fix listed | CNA |
- ThrottleStop VendorTechPowerUp Affected 3.0.0.0 and possibly others Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-7771
- 2026-10-03 Alias added: GHSA-f8p7-vvxp-hcxv
References
More TechPowerUp vulnerabilities
- TI-2025-04779 TechPowerUp GPU-Z 0x8000645C IOCTL GPU-Z.sys sub_140001880 memory leak CVSS 4.0MEDIUM 4.8
- TI-2019-05136 An issue was discovered in GPU-Z.sys in TechPowerUp GPU-Z before 2.23.0. CVSS 3.1HIGH 7.2
- TI-2023-00993 TechPowerUp Ryzen DRAM Calculator WinRing0x64.sys initialization CVSS 3.1HIGH 7.8
- TI-2023-00992 TechPowerUp RealTemp WinRing0x64.sys initialization CVSS 3.1HIGH 7.8
Sources
- CVE-2025-7771 · CVE Program
- CVE-2025-7771 · NVD
- FIRST EPSS
- GHSA-f8p7-vvxp-hcxv · GitHub Advisory Database · CC BY 4.0
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