CVE-2025-23280

7.0 HIGH

📋 TL;DR

A use-after-free vulnerability in NVIDIA Display Driver for Linux allows attackers to potentially execute arbitrary code with elevated privileges. This affects Linux systems running vulnerable NVIDIA GPU drivers. Successful exploitation could lead to complete system compromise.

💻 Affected Systems

Products:
  • NVIDIA Display Driver for Linux
Versions: Specific versions not detailed in provided references; check NVIDIA advisory for exact affected versions
Operating Systems: Linux distributions with NVIDIA GPU drivers
Default Config Vulnerable: ⚠️ Yes
Notes: Affects systems with NVIDIA GPUs using proprietary drivers. Integrated graphics or Nouveau open-source drivers are not affected.

⚠️ 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

Full system compromise with root privileges, allowing data theft, persistence installation, and complete control over affected systems.

🟠

Likely Case

Local privilege escalation from a standard user to root, enabling data tampering and further system exploitation.

🟢

If Mitigated

Denial of service or application crash if exploit fails or is partially successful.

🌐 Internet-Facing: LOW - This is a local privilege escalation vulnerability requiring local access to exploit.
🏢 Internal Only: HIGH - Malicious insiders or compromised user accounts could exploit this to gain root privileges on affected workstations/servers.

🎯 Exploit Status

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

Requires local access and knowledge of driver internals. Use-after-free vulnerabilities often require precise timing and memory manipulation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check NVIDIA advisory for specific fixed driver versions

Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5703

Restart Required: Yes

Instructions:

1. Visit NVIDIA driver download page. 2. Download latest stable driver for your GPU and Linux distribution. 3. Stop X server/graphical session. 4. Install new driver package. 5. Reboot system.

🔧 Temporary Workarounds

Restrict local user access

linux

Limit who has local login access to systems with vulnerable NVIDIA drivers

Disable NVIDIA driver modules

linux

Temporarily disable NVIDIA kernel modules if GPU not required

sudo modprobe -r nvidia
echo 'blacklist nvidia' | sudo tee /etc/modprobe.d/blacklist-nvidia.conf

🧯 If You Can't Patch

  • Implement strict access controls and monitor for privilege escalation attempts
  • Isolate affected systems from critical network segments and data

🔍 How to Verify

Check if Vulnerable:

Check NVIDIA driver version: nvidia-smi --query-gpu=driver_version --format=csv,noheader

Check Version:

nvidia-smi --query-gpu=driver_version --format=csv,noheader

Verify Fix Applied:

Verify driver version matches or exceeds patched version from NVIDIA advisory

📡 Detection & Monitoring

Log Indicators:

  • Kernel oops messages related to NVIDIA driver
  • Unexpected privilege escalation events
  • Crash reports from X server or display manager

Network Indicators:

  • Unusual outbound connections from privileged processes post-exploit

SIEM Query:

source="kernel" AND "nvidia" AND ("Oops" OR "segfault" OR "general protection fault")

🔗 References

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