CVE-2026-81235 in Wyse Management Suite
Summary
by MITRE • 09/15/2026
Dell Wyse Management Suite, versions prior to 2605.0.3.683, contain a Missing Cryptographic Step vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Information tampering.
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Analysis
by VulDB Data Team • 09/15/2026
The Dell Wyse Management Suite, specifically in versions preceding the patch release of 2605.0.3.683, exhibits a critical security deficiency classified as a Missing Cryptographic Step vulnerability. This flaw fundamentally undermines the integrity guarantees expected from secure management platforms designed for thin client environments. The vulnerability arises because certain data transmission or storage operations within the suite fail to implement necessary cryptographic protections such as digital signatures or message authentication codes. Without these mechanisms, there is no mathematical assurance that the data has not been altered during transit or while at rest on the managed endpoints. This absence of integrity verification creates a significant attack surface for adversaries who can intercept or manipulate communications between the management server and the Wyse thin clients.
A high privileged attacker with remote access to the network infrastructure containing this vulnerable software is in an ideal position to exploit this weakness. The requirement for high privilege suggests that the attacker likely possesses administrative credentials or has compromised a system with elevated rights within the domain, allowing them to interact directly with the management suite interfaces or backend services. By leveraging their existing access level, the attacker can intercept network traffic between components of the Wyse Management Suite and modify critical configuration parameters, policy definitions, or firmware update instructions without detection. Since the cryptographic step is missing, the system accepts these tampered messages as legitimate because it cannot verify their authenticity against a trusted source using digital signatures or hash-based message authentication codes.
The operational impact of this vulnerability centers on information tampering, which poses severe risks to the confidentiality and integrity of endpoint management operations. An attacker could alter device configurations to disable security controls, redirect network traffic through malicious proxies, or install unauthorized software by manipulating firmware update packages. In a corporate environment relying on Wyse thin clients for secure computing, such tampering can lead to widespread compromise of user sessions, theft of sensitive data processed on these endpoints, and potential lateral movement into deeper parts of the enterprise network. The lack of cryptographic verification means that administrators may unknowingly deploy malicious configurations or firmware updates believing them to be authentic, thereby facilitating a persistent backdoor within the managed infrastructure.
This vulnerability aligns with CWE-345, which describes Insufficient Verification of Data Authenticity, and falls under MITRE ATT&CK technique T1078, Valid Accounts, as exploitation relies on existing high-level access privileges. To mitigate this risk, organizations must immediately upgrade Dell Wyse Management Suite to version 2605.0.3.683 or later where the missing cryptographic verification has been implemented and validated by Dell security teams. Additionally, network segmentation should be enforced to restrict management traffic to authorized subnets only, reducing the exposure of these communications to potential interception. Implementing strict access controls and multi-factor authentication for administrative accounts further reduces the likelihood of an attacker obtaining the high privilege level required to exploit this flaw. Continuous monitoring of configuration changes and firmware deployment logs is also recommended to detect any anomalies that may indicate attempted tampering before it leads to significant compromise.