CVE-2025-32086

7.2 HIGH

📋 TL;DR

This vulnerability in Intel Xeon 6 processors allows a privileged user to bypass security checks in DDRIO configuration when using Intel SGX or TDX technologies, potentially enabling local privilege escalation. It affects systems running these specific Intel processors with SGX or TDX enabled. The risk is limited to attackers with existing local privileged access.

💻 Affected Systems

Products:
  • Intel Xeon 6 Processors
Versions: Specific models with affected DDRIO configuration
Operating Systems: All operating systems running on affected hardware
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects systems with Intel SGX (Software Guard Extensions) or Intel TDX (Trust Domain Extensions) enabled. The vulnerability is in hardware/firmware, not software.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

A privileged attacker could gain higher system privileges, potentially compromising the entire system, accessing protected memory regions, or bypassing hardware-based security enclaves.

🟠

Likely Case

A malicious administrator or compromised privileged account could elevate privileges to access sensitive data or system resources normally protected by SGX/TDX enclaves.

🟢

If Mitigated

With proper access controls and monitoring, the impact is limited as exploitation requires existing privileged access and specific hardware configurations.

🌐 Internet-Facing: LOW - This vulnerability requires local access and cannot be exploited remotely over the network.
🏢 Internal Only: MEDIUM - While it requires privileged local access, it could be exploited by malicious insiders or compromised accounts within the organization.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: HIGH

Exploitation requires detailed knowledge of processor architecture, privileged access, and specific hardware configurations. No public exploits have been reported.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Microcode update from Intel

Vendor Advisory: https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01367.html

Restart Required: Yes

Instructions:

1. Check Intel advisory for specific affected processor models. 2. Obtain microcode update from system/motherboard vendor. 3. Apply BIOS/UEFI firmware update containing the microcode patch. 4. Reboot system to activate the fix.

🔧 Temporary Workarounds

Disable Intel SGX/TDX

all

Disable Intel Software Guard Extensions and Trust Domain Extensions in BIOS/UEFI settings to remove the vulnerable attack surface.

Requires BIOS/UEFI configuration changes - no OS commands

Restrict Privileged Access

all

Implement strict access controls and monitoring for privileged accounts to reduce attack surface.

🧯 If You Can't Patch

  • Implement strict principle of least privilege for all system accounts
  • Monitor and audit privileged user activities and system configuration changes

🔍 How to Verify

Check if Vulnerable:

Check processor model and microcode version: On Linux: 'cat /proc/cpuinfo | grep -E "model|microcode"', On Windows: Use 'wmic cpu get name,description' and check system information

Check Version:

Linux: 'cat /proc/cpuinfo | grep "model name"', Windows: 'wmic cpu get name'

Verify Fix Applied:

Verify microcode version after BIOS update: On Linux: 'dmesg | grep microcode', On Windows: Check BIOS version in System Information

📡 Detection & Monitoring

Log Indicators:

  • Unusual BIOS/UEFI configuration changes
  • Privilege escalation attempts
  • SGX/TDX related errors or warnings

Network Indicators:

  • None - this is a local hardware vulnerability

SIEM Query:

Search for: (EventID=4657 OR EventID=4670) AND (ProcessName contains "sgx" OR Description contains "TDX")

🔗 References

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