CVE-2025-23357
📋 TL;DR
NVIDIA Megatron-LM contains a code injection vulnerability (CWE-94) where malicious data can lead to arbitrary code execution. This affects all platforms running vulnerable versions of Megatron-LM, potentially allowing attackers to execute commands, escalate privileges, or tamper with data.
💻 Affected Systems
- NVIDIA Megatron-LM
⚠️ 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 with attacker gaining root/admin privileges, data exfiltration, and persistent backdoor installation.
Likely Case
Unauthorized code execution within the Megatron-LM context, potentially leading to data tampering or privilege escalation within the application.
If Mitigated
Limited impact due to proper input validation, sandboxing, and network segmentation preventing exploitation.
🎯 Exploit Status
Code injection vulnerabilities typically have low exploitation complexity when attacker controls input.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check NVIDIA advisory for specific fixed versions
Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5712
Restart Required: Yes
Instructions:
1. Review NVIDIA advisory CVE-2025-23357
2. Update Megatron-LM to patched version
3. Restart affected services
4. Verify fix implementation
🔧 Temporary Workarounds
Input Validation
allImplement strict input validation and sanitization for all data processed by Megatron-LM scripts
Network Segmentation
allIsolate Megatron-LM instances from untrusted networks and implement strict firewall rules
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all data inputs
- Run Megatron-LM with minimal privileges and in isolated environments
🔍 How to Verify
Check if Vulnerable:
Check Megatron-LM version against NVIDIA advisory; review script usage patternsCheck Version:
Check Megatron-LM documentation for version command specific to your deploymentVerify Fix Applied:
Verify updated version number and test with safe input validation📡 Detection & Monitoring
Log Indicators:
- Unusual script execution patterns
- Unexpected command execution in Megatron-LM logs
- Error messages related to input processing
Network Indicators:
- Unusual outbound connections from Megatron-LM instances
- Suspicious data patterns in API calls
SIEM Query:
source="megatron-lm" AND (event="script_execution" OR event="command_execution") | where command contains suspicious patterns