CVE-2025-23262
📋 TL;DR
NVIDIA ConnectX management interface has an authorization vulnerability where local attackers could gain unauthorized configuration access. This affects systems using NVIDIA ConnectX network adapters with vulnerable firmware. Exploitation could lead to privilege escalation, denial of service, or data tampering.
💻 Affected Systems
- NVIDIA ConnectX network adapters
⚠️ 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
Attacker gains full administrative control over network adapter configuration, enabling data interception, service disruption, and persistent backdoor access to network traffic.
Likely Case
Local attacker modifies adapter settings to disrupt network connectivity or degrade performance, potentially causing temporary denial of service.
If Mitigated
With proper access controls and network segmentation, impact limited to isolated management interfaces with minimal business disruption.
🎯 Exploit Status
Requires local access to management interface and knowledge of authorization bypass technique. No public exploits known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check NVIDIA advisory for specific firmware versions
Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5655
Restart Required: No
Instructions:
1. Review NVIDIA advisory for affected firmware versions. 2. Download updated firmware from NVIDIA support portal. 3. Apply firmware update using NVIDIA management tools. 4. Verify firmware version after update.
🔧 Temporary Workarounds
Restrict Management Interface Access
allLimit network access to ConnectX management interfaces to authorized administrators only
Use firewall rules to restrict access to management IPs/ports
Implement network segmentation for management networks
Implement Strong Authentication
allEnsure management interfaces require strong authentication and authorization controls
Configure strong passwords for management access
Implement multi-factor authentication if supported
🧯 If You Can't Patch
- Isolate management interfaces on separate VLANs with strict access controls
- Implement network monitoring for unauthorized configuration changes to ConnectX adapters
🔍 How to Verify
Check if Vulnerable:
Check ConnectX firmware version using 'mlxfwmanager' or NVIDIA management tools and compare against advisoryCheck Version:
mlxfwmanager -iVerify Fix Applied:
Verify firmware version after update matches patched version from NVIDIA advisory📡 Detection & Monitoring
Log Indicators:
- Unauthorized configuration changes in ConnectX management logs
- Multiple failed authentication attempts followed by configuration changes
Network Indicators:
- Unexpected traffic patterns from management interfaces
- Configuration changes from unauthorized IP addresses
SIEM Query:
source="connectx_logs" AND (event_type="configuration_change" AND user NOT IN authorized_users)