CVE-2025-23270
📋 TL;DR
This vulnerability in NVIDIA Jetson Linux's UEFI Management mode allows unprivileged local attackers to exploit a side channel to potentially access sensitive information. Successful exploitation could lead to code execution, data tampering, denial of service, or information disclosure. It affects NVIDIA Jetson devices running vulnerable versions of Jetson Linux.
💻 Affected Systems
- NVIDIA Jetson 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
Full system compromise including arbitrary code execution with kernel privileges, complete data exposure, and persistent backdoor installation.
Likely Case
Information disclosure of sensitive system data and potential denial of service through system instability.
If Mitigated
Limited impact with proper access controls and isolation, potentially only affecting non-critical data.
🎯 Exploit Status
Requires local access and side channel exploitation techniques. No public exploit code known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check NVIDIA advisory for specific fixed versions
Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5662
Restart Required: Yes
Instructions:
1. Review NVIDIA advisory for affected versions. 2. Download and apply the latest security update from NVIDIA. 3. Reboot the system to apply UEFI/BIOS updates. 4. Verify the patch is applied successfully.
🔧 Temporary Workarounds
Restrict Local Access
allLimit physical and remote local access to vulnerable systems to trusted users only.
Disable Unnecessary Services
linuxDisable UEFI Management mode if not required for your use case.
Check NVIDIA documentation for UEFI Management mode disable procedures
🧯 If You Can't Patch
- Implement strict access controls and limit user privileges on affected systems
- Isolate vulnerable systems from critical networks and monitor for suspicious local activity
🔍 How to Verify
Check if Vulnerable:
Check your Jetson Linux version against NVIDIA's advisory and verify if UEFI Management mode is enabled.Check Version:
cat /etc/nv_tegra_releaseVerify Fix Applied:
Verify system is running a patched version from NVIDIA and check that security updates have been applied successfully.📡 Detection & Monitoring
Log Indicators:
- Unexpected UEFI/BIOS access attempts
- Suspicious local privilege escalation attempts
- System instability or crashes
Network Indicators:
- Not applicable - local attack only
SIEM Query:
Search for local privilege escalation events or unexpected system access on Jetson devices