CVE-2025-9319

7.5 HIGH

📋 TL;DR

This vulnerability in the Lenovo Wallpaper Client could allow attackers to execute arbitrary code on affected systems by exploiting improper download handling. It affects users running vulnerable versions of the Lenovo Wallpaper Client software. Successful exploitation requires specific conditions but could lead to full system compromise.

💻 Affected Systems

Products:
  • Lenovo Wallpaper Client
Versions: Specific versions not detailed in advisory; all versions prior to patch are likely affected
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the Lenovo Wallpaper Client to be installed and running. The vulnerability involves improper handling of downloaded files.

⚠️ 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 administrative privileges, allowing data theft, ransomware deployment, or persistent backdoor installation.

🟠

Likely Case

Local privilege escalation or limited code execution within the context of the vulnerable application.

🟢

If Mitigated

No impact if the vulnerable component is not installed or has been patched.

🌐 Internet-Facing: LOW - This appears to be a client-side vulnerability requiring local access or user interaction.
🏢 Internal Only: MEDIUM - Could be exploited via phishing, malicious files, or lateral movement within a network.

🎯 Exploit Status

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

Exploitation requires specific conditions and likely involves social engineering or local access. No public exploit code has been reported.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in advisory; update to latest version from Lenovo

Vendor Advisory: https://iknow.lenovo.com.cn/detail/431733

Restart Required: Yes

Instructions:

1. Visit the Lenovo support website. 2. Download the latest version of Lenovo Wallpaper Client. 3. Install the update. 4. Restart the system if prompted.

🔧 Temporary Workarounds

Uninstall Lenovo Wallpaper Client

windows

Remove the vulnerable software entirely if not needed

Control Panel > Programs > Uninstall a program > Select Lenovo Wallpaper Client > Uninstall

Disable automatic wallpaper downloads

windows

Prevent the client from downloading potentially malicious files

Open Lenovo Wallpaper Client settings > Disable automatic updates/downloads

🧯 If You Can't Patch

  • Restrict user permissions to prevent code execution
  • Implement application whitelisting to block unauthorized executables

🔍 How to Verify

Check if Vulnerable:

Check if Lenovo Wallpaper Client is installed via Control Panel > Programs and Features

Check Version:

Not available via command line; check through application interface or Control Panel

Verify Fix Applied:

Verify the software version matches or exceeds the patched version from Lenovo's advisory

📡 Detection & Monitoring

Log Indicators:

  • Unusual process creation from Lenovo Wallpaper Client
  • Failed update attempts
  • Suspicious file downloads

Network Indicators:

  • Unexpected outbound connections from wallpaper client
  • Downloads from unusual sources

SIEM Query:

Process creation where parent process contains 'lenovo' AND process name contains unusual executable names

🔗 References

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