CVE-2025-59185

6.5 MEDIUM

📋 TL;DR

This vulnerability in Windows Core Shell allows attackers to manipulate file paths or names remotely, enabling spoofing attacks over networks. It affects Windows systems with the vulnerable component, potentially allowing attackers to trick users or systems into accessing malicious resources.

💻 Affected Systems

Products:
  • Windows Core Shell
Versions: Specific versions not detailed in reference; check Microsoft advisory for exact affected builds
Operating Systems: Windows 10, Windows 11, Windows Server 2016/2019/2022
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability requires network access to target; systems with Core Shell enabled and exposed to untrusted networks are at highest risk.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could redirect legitimate file operations to malicious locations, leading to data theft, malware execution, or system compromise through spoofed resources.

🟠

Likely Case

Attackers spoof legitimate files or paths to trick users into executing malicious content or accessing compromised resources, potentially leading to credential theft or initial access.

🟢

If Mitigated

With proper network segmentation and user education, impact is limited to isolated incidents with minimal data exposure.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

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

Exploitation requires network access and ability to manipulate file paths; no public exploit code available at this time.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Microsoft Security Update for specific KB number

Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59185

Restart Required: No

Instructions:

1. Apply latest Windows security updates from Microsoft Update. 2. Verify update installation via Windows Update history. 3. No additional configuration changes required.

🔧 Temporary Workarounds

Network Segmentation

all

Restrict network access to systems running Windows Core Shell to trusted networks only

User Education

all

Train users to verify file sources and paths when accessing network resources

🧯 If You Can't Patch

  • Implement strict network access controls to limit exposure
  • Monitor for suspicious file path manipulation attempts in network traffic

🔍 How to Verify

Check if Vulnerable:

Check Windows Update history for missing security patches related to CVE-2025-59185

Check Version:

systeminfo | findstr /B /C:"OS Name" /C:"OS Version"

Verify Fix Applied:

Verify KB number from Microsoft advisory is installed via 'Get-Hotfix' in PowerShell

📡 Detection & Monitoring

Log Indicators:

  • Unusual file path access patterns in Windows event logs
  • Failed file operations with manipulated paths

Network Indicators:

  • Suspicious file transfer attempts with unusual paths
  • Network traffic to unexpected file shares

SIEM Query:

EventID=4663 AND TargetObject CONTAINS suspicious_path_pattern

🔗 References

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