CVE-2025-59214 is a vulnerability identified in Microsoft Windows 10 Version 1507 (build 10.0.10240.0) affecting the Windows File Explorer component. The issue is classified under CWE-200, indicating exposure of sensitive information to unauthorized actors. Specifically, the vulnerability allows an attacker to perform spoofing attacks over a network by leveraging information leakage through File Explorer. The CVSS 3.1 base score is 6.5 (medium severity), with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but user interaction is necessary (UI:R). The scope is unchanged (S:U), and the impact is high on confidentiality (C:H), with no impact on integrity (I:N) or availability (A:N). The vulnerability does not currently have known exploits in the wild, and no official patches have been published yet. The flaw likely involves Windows File Explorer improperly disclosing sensitive information when browsing or interacting with network resources, which could enable attackers to spoof network communications or deceive users. Given the age of the affected Windows 10 version (initial release in 2015), many systems may be out of support, increasing risk. The vulnerability could be exploited remotely without authentication but requires user interaction, such as opening a crafted file or network location. This exposure could facilitate further attacks such as phishing, man-in-the-middle, or lateral movement within networks.

The primary impact of CVE-2025-59214 is the unauthorized disclosure of sensitive information, which compromises confidentiality. This could allow attackers to gather data useful for spoofing attacks, social engineering, or network reconnaissance. Although integrity and availability are not directly affected, the information exposure can serve as a stepping stone for more severe attacks. Organizations with legacy Windows 10 Version 1507 systems are particularly vulnerable, especially if these systems are connected to untrusted networks or the internet. The requirement for user interaction limits the ease of exploitation but does not eliminate risk, especially in environments where users may be targeted with malicious files or links. The lack of patches and known exploits means the threat is currently theoretical but could become practical if weaponized. The exposure could lead to data breaches, loss of trust, and compliance violations, particularly in sectors handling sensitive or regulated data. Overall, the vulnerability poses a moderate risk that should be addressed promptly to prevent escalation.

1. Upgrade affected systems to a supported and fully patched version of Windows 10 or later, as Windows 10 Version 1507 is outdated and no longer supported by Microsoft. 2. Restrict network access to legacy systems, especially limiting exposure to untrusted networks or the internet. 3. Disable or restrict the use of Windows File Explorer features that interact with untrusted network resources, such as network shares or WebDAV locations. 4. Implement strict user training and awareness programs to reduce the risk of user interaction with malicious files or links. 5. Use endpoint protection solutions that can detect and block suspicious file or network activity related to File Explorer. 6. Monitor network traffic for signs of spoofing or unusual activity that could indicate exploitation attempts. 7. Apply network segmentation to isolate legacy systems from critical infrastructure and sensitive data stores. 8. Regularly audit and inventory systems to identify any running the vulnerable Windows 10 version and prioritize their remediation. 9. Follow Microsoft security advisories for updates on patches or workarounds related to this CVE.