CVE-2025-53947

7.7 HIGH

📋 TL;DR

A local privilege escalation vulnerability in Windows software allows low-privileged users to corrupt sensitive data. The vulnerability exists because a data folder is created with overly permissive permissions, enabling any authenticated user to modify its contents. This affects Windows systems running the vulnerable software.

💻 Affected Systems

Products:
  • Specific product information not provided in CVE description - refer to vendor advisory
Versions: Version range not specified - check vendor advisory
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Affects Windows systems where the vulnerable software is installed. The vulnerability is in how the software creates and secures its data folder.

⚠️ 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

Critical data corruption leading to system instability, loss of sensitive information, or denial of service for legitimate users.

🟠

Likely Case

Unauthorized modification or deletion of application data, potentially causing application failures or data integrity issues.

🟢

If Mitigated

Limited impact with proper access controls and monitoring in place, though the vulnerability still exists.

🌐 Internet-Facing: LOW - This requires local access to the system, not remote exploitation.
🏢 Internal Only: HIGH - Any authenticated user on the Windows system can potentially exploit this vulnerability.

🎯 Exploit Status

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

Exploitation requires local access with any user account. The attack involves modifying folder permissions or contents directly.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory for specific version

Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-25-261-06

Restart Required: Yes

Instructions:

1. Review the CISA advisory for affected products
2. Check with your software vendor for available patches
3. Apply the vendor-provided patch following their instructions
4. Restart affected systems as required

🔧 Temporary Workarounds

Restrict folder permissions

windows

Manually adjust the data folder permissions to restrict write access to authorized users only

icacls "C:\Path\To\DataFolder" /inheritance:r
icacls "C:\Path\To\DataFolder" /grant:r "SYSTEM:(OI)(CI)F"
icacls "C:\Path\To\DataFolder" /grant:r "Administrators:(OI)(CI)F"
icacls "C:\Path\To\DataFolder" /grant:r "AuthorizedUser:(OI)(CI)RX"

Move data to secure location

windows

Relocate sensitive data to a directory with proper access controls

🧯 If You Can't Patch

  • Implement strict access controls on the data folder using Windows permissions
  • Monitor the data folder for unauthorized access attempts and modifications

🔍 How to Verify

Check if Vulnerable:

Check if the software's data folder has overly permissive permissions (e.g., Everyone:Full Control or Authenticated Users:Modify)

Check Version:

Check software version through vendor-specific methods or Windows Programs and Features

Verify Fix Applied:

Verify that the data folder now has restricted permissions and only authorized users/groups have write access

📡 Detection & Monitoring

Log Indicators:

  • Windows Security event logs showing unauthorized access to the data folder
  • Application logs showing data corruption or access errors

Network Indicators:

  • Local file access patterns to the vulnerable data folder

SIEM Query:

EventID=4663 AND ObjectName="*\DataFolder\*" AND Accesses="WriteData" OR "AppendData"

🔗 References

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