CVE-2025-25176
📋 TL;DR
This vulnerability allows non-secure applications to exfiltrate intermediate register values from secure workloads, potentially exposing sensitive data processed by secure environments. It affects platforms with Imagination Technologies GPU drivers that schedule secure workloads from non-secure applications. Systems using affected Imagination GPU hardware/drivers are vulnerable.
💻 Affected Systems
- Imagination Technologies GPU drivers
📦 What is this software?
Ddk by Imaginationtech
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of secure workload data including cryptographic keys, authentication tokens, and other sensitive information processed in secure environments.
Likely Case
Information disclosure of sensitive data from secure workloads, potentially enabling further attacks against secure systems.
If Mitigated
Limited impact if proper isolation between secure and non-secure environments is maintained and affected systems are patched.
🎯 Exploit Status
Exploitation requires ability to run non-secure applications on affected platform and knowledge of secure workload scheduling.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Imagination Technologies advisory for specific patched versions
Vendor Advisory: https://www.imaginationtech.com/gpu-driver-vulnerabilities/
Restart Required: Yes
Instructions:
1. Check Imagination Technologies advisory for affected versions
2. Update GPU drivers to patched version from vendor
3. Reboot system after driver update
4. Verify secure/non-secure environment isolation
🔧 Temporary Workarounds
Disable secure workload scheduling from non-secure apps
allConfigure system to prevent non-secure applications from scheduling secure workloads
System-specific configuration required; consult platform documentation
Enhanced environment isolation
allImplement stronger isolation between secure and non-secure execution environments
Platform-specific security configuration required
🧯 If You Can't Patch
- Isolate affected systems from untrusted networks and users
- Monitor for unusual secure workload behavior and access patterns
🔍 How to Verify
Check if Vulnerable:
Check GPU driver version against Imagination advisory; examine system configuration for secure/non-secure environment schedulingCheck Version:
Platform-specific GPU driver version check (e.g., 'cat /sys/class/gpu/version' or vendor-specific tools)Verify Fix Applied:
Verify GPU driver version matches patched version from advisory; test secure workload isolation📡 Detection & Monitoring
Log Indicators:
- Unusual secure workload scheduling patterns
- Access attempts to secure environment registers from non-secure context
Network Indicators:
- Unexpected data exfiltration from secure processing systems
SIEM Query:
Search for secure workload scheduling anomalies and cross-environment access attempts