CVE-2025-0038
📋 TL;DR
This vulnerability in AMD Zynq UltraScale+ devices allows attackers to bypass memory isolation protections when executing CSU runtime services through the PMU Firmware. This can lead to unauthorized access to protected memory spaces, compromising both data integrity and confidentiality. The vulnerability affects systems using these specific AMD embedded processors.
💻 Affected Systems
- AMD Zynq UltraScale+ MPSoC devices
⚠️ 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 compromise of protected memory spaces allowing extraction of sensitive data, firmware modification, or system takeover.
Likely Case
Unauthorized access to isolated memory regions containing sensitive information or configuration data.
If Mitigated
Limited impact if proper memory isolation controls and firmware validation are implemented.
🎯 Exploit Status
Requires local access and ability to execute CSU runtime services through PMU Firmware
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to AMD security bulletin for specific firmware versions
Vendor Advisory: https://www.amd.com/en/resources/product-security/bulletin/amd-sb-8008.html
Restart Required: Yes
Instructions:
1. Review AMD security bulletin SB-8008. 2. Obtain updated firmware from AMD. 3. Apply firmware update following manufacturer instructions. 4. Reboot system to activate new firmware.
🔧 Temporary Workarounds
Restrict PMU Firmware Access
allLimit access to PMU firmware services to trusted processes only
Enhanced Memory Protection
allImplement additional memory protection mechanisms at OS/hypervisor level
🧯 If You Can't Patch
- Isolate affected devices in separate network segments
- Implement strict access controls and monitoring for systems using vulnerable hardware
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against AMD's patched versions in security bulletinCheck Version:
Device-specific commands vary; consult hardware documentation for firmware version checkVerify Fix Applied:
Verify firmware version has been updated to patched version from AMD📡 Detection & Monitoring
Log Indicators:
- Unusual PMU firmware service calls
- Memory access violations in protected regions
Network Indicators:
- Not network exploitable; local attack vector
SIEM Query:
Search for unauthorized firmware service execution or memory access patterns