CVE-2026-23859 in Wyse Management Suite
Summary
by MITRE • 02/24/2026
Dell Wyse Management Suite, versions prior to WMS 5.5, contain a Client-Side Enforcement of Server-Side Security vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability to Protection mechanism bypass.
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Analysis
by VulDB Data Team • 02/24/2026
The vulnerability identified as CVE-2026-23859 affects Dell Wyse Management Suite versions prior to WMS 5.5 and represents a critical client-side enforcement of server-side security flaw that undermines the platform's protective mechanisms. This vulnerability resides within the client-side components of the management suite, where security controls that should be enforced server-side are being bypassed through client-side manipulation. The flaw allows a high privileged attacker who has already gained remote access to the system to circumvent established security protections that are intended to be maintained on the server side. The vulnerability is particularly concerning because it enables an attacker who has already achieved a foothold in the environment to further compromise the system by exploiting this weakness in the security enforcement model.
The technical nature of this vulnerability stems from improper implementation of security controls where client-side components are trusted to enforce security policies that should be centrally managed and enforced by the server-side infrastructure. This design flaw creates a scenario where client-side applications can manipulate or bypass security mechanisms that are supposed to be protected and controlled by the server-side management components. The vulnerability allows for a protection mechanism bypass that can potentially lead to unauthorized access, privilege escalation, or data compromise within the managed environment. According to CWE classification, this represents a weakness in the enforcement of security policies where client-side components should not be trusted to enforce server-side security controls, making it a variant of CWE-693 Protection Mechanism Failure.
The operational impact of this vulnerability is significant for organizations using Dell Wyse Management Suite, as it creates a potential pathway for attackers to escalate their privileges and gain deeper access to managed devices and network resources. The vulnerability essentially allows a sophisticated attacker who has already achieved remote access to bypass additional security layers that would normally protect against further compromise. This creates a dangerous scenario where an attacker's initial foothold can be leveraged to undermine the very security infrastructure designed to protect the managed environment. The risk is amplified because the vulnerability affects the core management capabilities of the platform, potentially allowing attackers to manipulate device configurations, access sensitive data, or disrupt management operations. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation and defense evasion techniques where an attacker can bypass security controls that are intended to prevent further compromise.
Organizations should immediately implement mitigations including upgrading to Dell Wyse Management Suite version 5.5 or later, which contains the necessary security patches to address this vulnerability. Network segmentation and monitoring should be enhanced to detect potential exploitation attempts, while access controls should be reviewed and strengthened to minimize the impact of any successful exploitation. Security teams should also implement continuous monitoring of management suite components and ensure that proper network access controls are in place to limit exposure. Additionally, organizations should conduct thorough security assessments of their existing environments to identify any potential exploitation attempts and ensure that all managed devices are properly updated to prevent further risk. The vulnerability highlights the critical importance of maintaining up-to-date security controls and proper segregation of security enforcement between client and server components.