CVE-2025-36575: Dell Wyse Management Suite Info Leak

CVE-2025-36575 Overview

Dell Wyse Management Suite, versions prior to WMS 5.2, contains an Exposure of Sensitive Information Through Data Queries vulnerability (CWE-202). An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to information disclosure. This vulnerability allows attackers to extract sensitive data from the management suite without requiring any authentication credentials, posing a significant risk to enterprise thin client environments managed by the affected software.

Critical Impact

Unauthenticated remote attackers can access sensitive information through data queries, potentially exposing critical configuration data, device information, and organizational details managed by the Wyse Management Suite.

Affected Products

• Dell Wyse Management Suite versions prior to 5.2
• Dell thin client management infrastructure utilizing vulnerable WMS versions
• Enterprise environments using Dell Wyse Management Suite for centralized device management

Discovery Timeline

• 2025-06-10 - CVE-2025-36575 published to NVD
• 2025-07-11 - Last updated in NVD database

Technical Details for CVE-2025-36575

Vulnerability Analysis

This vulnerability is classified as CWE-202: Exposure of Sensitive Information Through Data Queries. The flaw exists in how Dell Wyse Management Suite handles data queries, allowing unauthenticated attackers to craft specific requests that retrieve sensitive information from the application. The network-accessible nature of the vulnerability combined with the lack of authentication requirements makes this particularly dangerous in enterprise environments where the management suite is exposed to internal networks or, in some cases, the internet.

The vulnerability impacts the confidentiality of data managed by the Wyse Management Suite without affecting the integrity or availability of the system. Organizations utilizing Dell Wyse thin clients rely on this management suite for device configuration, software deployment, and centralized administration, making the exposed information potentially valuable for further attacks against the managed infrastructure.

Root Cause

The root cause of CVE-2025-36575 lies in insufficient access controls on data query endpoints within Dell Wyse Management Suite. The application fails to properly authenticate or authorize requests to certain API endpoints or query functions, allowing unauthenticated users to retrieve data that should be restricted to authenticated administrators. This represents a fundamental breakdown in the application's security model where sensitive data retrieval operations are not adequately protected.

Attack Vector

The attack vector is network-based, requiring no user interaction or special privileges. An attacker with network access to the Dell Wyse Management Suite can exploit this vulnerability remotely. The attack involves sending specially crafted data queries to the vulnerable endpoints, which return sensitive information without requiring authentication. This could be performed by any attacker on the same network segment as the management suite, or remotely if the management interface is exposed to the internet.

The exploitation process involves identifying the vulnerable query endpoints and crafting requests that bypass authentication checks to extract sensitive organizational data managed by the Wyse Management Suite. Due to the unauthenticated nature of the vulnerability, reconnaissance and exploitation can be performed with minimal effort.

Detection Methods for CVE-2025-36575

Indicators of Compromise

• Unusual query patterns or high volumes of data requests to Dell Wyse Management Suite endpoints from unexpected IP addresses
• Unauthenticated access attempts to management suite API endpoints in application logs
• Data exfiltration indicators showing large volumes of outbound data from the WMS server
• Access logs showing requests from non-administrative systems to sensitive data endpoints

Detection Strategies

• Monitor Dell Wyse Management Suite access logs for unauthenticated requests to data query endpoints
• Implement network intrusion detection rules to identify suspicious traffic patterns targeting WMS servers
• Deploy application-layer monitoring to detect anomalous query behavior that may indicate exploitation attempts
• Review firewall logs for unexpected external connections to the management suite

Monitoring Recommendations

• Enable detailed logging on Dell Wyse Management Suite servers and forward logs to a centralized SIEM
• Implement alerting for failed and successful access attempts to sensitive data endpoints
• Monitor network traffic to and from WMS servers for unusual patterns or data volumes
• Conduct regular log analysis to identify potential exploitation attempts or reconnaissance activity

How to Mitigate CVE-2025-36575

Immediate Actions Required

• Upgrade Dell Wyse Management Suite to version 5.2 or later immediately
• Restrict network access to the Dell Wyse Management Suite to authorized administrative systems only
• Implement network segmentation to isolate the management suite from untrusted network segments
• Review access logs for any indicators of past exploitation

Patch Information

Dell has released a security update addressing this vulnerability in Dell Wyse Management Suite version 5.2. Organizations should apply this update as soon as possible following their change management procedures. The official security advisory with complete patch details is available from Dell Security Advisory DSA-2025-226.

Workarounds

• Implement strict firewall rules to limit access to the Dell Wyse Management Suite to only trusted IP addresses and administrative workstations
• Deploy a web application firewall (WAF) in front of the management suite to filter potentially malicious queries
• Enable additional authentication mechanisms such as VPN requirements for accessing the management interface
• Consider temporarily disabling external network access to the management suite until the patch can be applied

# Example firewall rule to restrict access to WMS (adjust IP ranges as needed)
# Windows Firewall - Allow only specific admin subnet
netsh advfirewall firewall add rule name="Restrict WMS Access" dir=in action=allow protocol=tcp localport=443 remoteip=10.10.10.0/24
netsh advfirewall firewall add rule name="Block WMS External" dir=in action=block protocol=tcp localport=443 remoteip=any