CVE-2025-46709
📋 TL;DR
This CVE describes a use-after-free vulnerability in Imagination Technologies GPU drivers that could allow attackers to cause kernel memory leaks or trigger kernel exceptions. Successful exploitation could lead to system instability or potential privilege escalation. Systems using Imagination GPU hardware with vulnerable drivers are affected.
💻 Affected Systems
- Imagination Technologies GPU drivers
📦 What is this software?
Ddk by Imaginationtech
⚠️ Risk & Real-World Impact
Worst Case
Kernel panic leading to denial of service, or potential privilege escalation allowing full system compromise
Likely Case
System instability, crashes, or denial of service affecting GPU functionality
If Mitigated
Limited impact with proper isolation and restricted user access to GPU resources
🎯 Exploit Status
Exploitation requires local access and ability to trigger specific GPU operations
🛠️ 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 to load new driver.
🔧 Temporary Workarounds
Restrict GPU access
allLimit user access to GPU resources and privileged operations
Use appropriate OS-specific access controls (e.g., SELinux, AppArmor on Linux)
🧯 If You Can't Patch
- Isolate affected systems from untrusted users and networks
- Implement strict access controls and monitor for unusual GPU-related system calls
🔍 How to Verify
Check if Vulnerable:
Check GPU driver version against Imagination Technologies advisoryCheck Version:
System-specific command to check GPU driver version (e.g., 'modinfo' for Linux kernel modules)Verify Fix Applied:
Verify GPU driver version matches patched version from vendor advisory📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- GPU driver crash reports
- System instability events
Network Indicators:
- None - local exploitation only
SIEM Query:
Search for kernel panic events or GPU driver crash reports in system logs