CVE-2026-44273: Dell Wyse Management Suite Vulnerability

CVE-2026-44273 Overview

CVE-2026-44273 affects Dell Wyse Management Suite (WMS) versions prior to WMS 2605. The product contains a Use of Default Credentials weakness [CWE-1392] that allows a high-privileged attacker with local access to extract sensitive information from the system. Dell published advisory DSA-2026-247 to address the issue.

The vulnerability is classified as an information disclosure flaw. Successful exploitation requires existing high privileges and local access, which limits the attack surface but still presents a meaningful risk in environments where Wyse Management Suite manages thin client fleets containing sensitive configuration data.

Critical Impact
A local attacker with high privileges can leverage default credentials in Dell Wyse Management Suite to disclose sensitive information and compromise data integrity within the management environment.

Affected Products

Dell Wyse Management Suite (WMS) versions prior to 2605
Dell Wyse Management Suite deployments managing thin client endpoints
Environments relying on default WMS authentication configuration

Discovery Timeline

2026-06-22 - CVE-2026-44273 published to NVD
2026-06-24 - Last updated in NVD database

Technical Details for CVE-2026-44273

Vulnerability Analysis

The vulnerability resides in how Dell Wyse Management Suite handles authentication for certain components or services. Versions prior to WMS 2605 ship with or retain default credentials that are not enforced to be changed during installation or initial configuration. This falls under [CWE-1392] (Use of Default Credentials), a weakness category that consistently appears in enterprise management platforms.

An attacker who already holds high privileges on the local system can use these default credentials to access protected resources or services that should otherwise require unique authentication. The result is unauthorized disclosure of sensitive data and potential integrity impact on managed components. Availability is not affected according to the published vector.

Root Cause

The root cause is the persistence of factory-default authentication material within the WMS deployment. When applications ship with embedded or default credentials and do not force rotation, those credentials become a reliable secondary access path for attackers who have established a foothold. Administrative documentation alone does not mitigate the weakness if the product permits continued operation with the defaults.

Attack Vector

Exploitation requires local access (AV:L) and high privileges (PR:H). A threat actor who has compromised a privileged account on a system that interacts with WMS, or who has reached the WMS host through prior lateral movement, can authenticate to the affected component using the default credentials. From there, the attacker reads protected configuration, secrets, or managed device data, and may alter managed state. No user interaction is required.

No public proof-of-concept exploit is currently available, and CISA has not added this CVE to the Known Exploited Vulnerabilities catalog. The EPSS probability is low at the time of publication, reflecting the high-privilege local prerequisite.

Detection Methods for CVE-2026-44273

Indicators of Compromise

Authentication events on Wyse Management Suite components using accounts that match documented default credentials
Unexpected administrative logins or API calls originating from local processes on the WMS host
Access to managed device configuration exports or credential stores outside of scheduled administrative workflows

Detection Strategies

Audit WMS configuration to identify accounts still using vendor-default credentials before applying the patch
Correlate local logon events on WMS servers with subsequent access to management APIs and data stores
Hunt for privilege escalation chains that terminate in WMS service interaction, which may indicate staging for default-credential abuse

Monitoring Recommendations

Forward Wyse Management Suite application logs and Windows Security event logs to a centralized analytics platform
Alert on use of built-in or default administrative accounts on WMS hosts, especially outside maintenance windows
Monitor egress of WMS configuration or thin client inventory data from the management server

How to Mitigate CVE-2026-44273

Immediate Actions Required

Upgrade Dell Wyse Management Suite to version 2605 or later as released by Dell
Rotate any administrative or service credentials associated with WMS, including any that may match documented defaults
Restrict local and administrative access to WMS hosts to a minimal set of accounts and enforce multi-factor authentication on those accounts
Review WMS audit logs for prior use of default credentials and investigate any anomalies

Patch Information

Dell released the fix in Wyse Management Suite 2605. Refer to the Dell Security Advisory DSA-2026-247 for upgrade instructions, affected component details, and remediation guidance. Apply the update following Dell's documented upgrade path for your deployment topology.

Workarounds

Where immediate patching is not feasible, isolate WMS management servers on a restricted administrative network segment
Disable or rename any default accounts that are not required for operation and enforce strong unique passwords on accounts that must remain
Limit interactive logon rights on the WMS host to a vetted administrative group and remove unnecessary local privileges

bash

# Configuration example
# Validate that no local accounts are using known default credentials
# and that administrative access to the WMS host is restricted.

# Windows: list local accounts and last logon
net user
wmic useraccount get name,disabled,passwordrequired,passwordchangeable

# Restrict interactive logon to a dedicated administrative group
secedit /export /cfg C:\wms_secpol.cfg
# Edit SeInteractiveLogonRight to include only the approved WMS admin group
secedit /configure /db secedit.sdb /cfg C:\wms_secpol.cfg