Dell Wyse Management Suite, a centralized endpoint management solution for Dell Wyse thin clients and other devices, contains a Missing Authorization vulnerability identified as CVE-2026-22765. This vulnerability is classified under CWE-862, indicating that the software fails to properly enforce authorization checks on certain functions or API endpoints. Specifically, versions prior to WMS 5.5 do not adequately verify whether a user has the necessary privileges before allowing access to sensitive operations. As a result, an attacker with low-level privileges but remote network access can exploit this flaw to escalate their privileges within the management suite environment. The CVSS v3.1 base score of 8.8 reflects the vulnerability's high impact and ease of exploitation: it requires low attack complexity, no user interaction, and only low privileges to initiate. The vulnerability affects confidentiality, integrity, and availability, as an attacker could gain administrative control, manipulate device configurations, or disrupt management operations. Although no public exploits have been reported yet, the vulnerability's nature and scoring suggest it could be weaponized rapidly. The lack of available patches at the time of disclosure necessitates immediate defensive measures to reduce risk exposure. This vulnerability highlights the critical importance of robust authorization mechanisms in management platforms that control large fleets of endpoints.

The impact of CVE-2026-22765 is significant for organizations using Dell Wyse Management Suite to manage their thin clients and endpoint devices. Successful exploitation allows attackers to elevate privileges from a low-privileged user to administrative levels, potentially gaining full control over the management suite. This can lead to unauthorized disclosure of sensitive configuration data, manipulation or disruption of endpoint management policies, and the ability to deploy malicious configurations or software to managed devices. The compromise of the management suite can cascade to the broader network, as endpoints may be coerced into malicious activities or become entry points for further lateral movement. Organizations in sectors relying heavily on thin clients—such as healthcare, finance, government, and large enterprises—face increased risks of data breaches, operational disruption, and regulatory non-compliance. The remote attack vector and lack of required user interaction increase the likelihood of exploitation, especially in environments with insufficient network segmentation or weak access controls. The absence of known exploits currently provides a window for proactive mitigation, but the high CVSS score underscores the urgency of addressing this vulnerability.

1. Apply patches or updates from Dell as soon as they become available for Wyse Management Suite 5.5 or later to remediate the missing authorization flaw. 2. Until patches are released, restrict remote network access to the management suite using firewall rules, VPNs, or zero-trust network segmentation to limit exposure to trusted administrators only. 3. Implement strong authentication and role-based access control (RBAC) policies within the management suite to minimize the privileges assigned to users and reduce the attack surface. 4. Monitor logs and network traffic for unusual access patterns or privilege escalation attempts related to the management suite. 5. Conduct regular security assessments and penetration testing focused on authorization controls in management platforms. 6. Educate administrators on the risks of unauthorized access and enforce the principle of least privilege. 7. Consider deploying intrusion detection/prevention systems (IDS/IPS) tuned to detect anomalous activities targeting the management suite. 8. Maintain an inventory of all Wyse Management Suite instances and ensure they are updated promptly. 9. Isolate management infrastructure from general user networks to reduce the risk of lateral movement. 10. Prepare incident response plans specifically addressing potential compromises of endpoint management systems.