CVE-2025-33218
📋 TL;DR
An integer overflow vulnerability in NVIDIA's Windows GPU display driver kernel component (nvlddmkm.sys) could allow attackers to execute arbitrary code with kernel privileges. This affects Windows systems with vulnerable NVIDIA GPU drivers installed. Successful exploitation could lead to full system compromise.
💻 Affected Systems
- NVIDIA GPU Display Driver
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover via kernel-level code execution, enabling data theft, persistence installation, and disabling of security controls.
Likely Case
Local privilege escalation from a lower-privileged user to SYSTEM/administrator, potentially leading to data tampering or credential harvesting.
If Mitigated
Denial of service or system crash if exploit fails or is blocked by security controls.
🎯 Exploit Status
Requires local access and ability to execute code; kernel exploitation adds complexity but integer overflows are well-understood attack vectors.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check NVIDIA advisory for specific fixed driver versions
Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5747
Restart Required: Yes
Instructions:
1. Visit NVIDIA Driver Downloads. 2. Select your GPU model and Windows version. 3. Download and install the latest driver. 4. Restart system to complete installation.
🔧 Temporary Workarounds
Restrict local user privileges
windowsLimit standard user accounts to prevent initial code execution required for exploitation
Enable driver signature enforcement
windowsEnsure only signed drivers can load, though NVIDIA driver is already signed
bcdedit /set nointegritychecks off
bcdedit /set testsigning off
🧯 If You Can't Patch
- Implement application allowlisting to prevent unauthorized code execution
- Segment networks to limit lateral movement if system is compromised
🔍 How to Verify
Check if Vulnerable:
Check NVIDIA driver version via Device Manager > Display adapters > NVIDIA GPU > Driver tab, or run 'nvidia-smi' if installedCheck Version:
wmic path win32_pnpentity get caption,driverVersion | findstr /i nvidiaVerify Fix Applied:
Verify driver version matches or exceeds patched version listed in NVIDIA advisory📡 Detection & Monitoring
Log Indicators:
- Unexpected driver loads/crashes in System logs
- Event ID 219 from source 'nvlddmkm' indicating driver issues
Network Indicators:
- Unusual outbound connections following local privilege escalation
SIEM Query:
EventID=219 AND Source='nvlddmkm' | stats count by host