Overview
Dell has disclosed CVE-2026-63700, a high-severity privilege escalation vulnerability in Dell Wyse Management Suite (WMS) — the enterprise thin client and endpoint management platform widely deployed in healthcare, finance, and government environments. Successful exploitation can lead to full confidentiality, integrity, and availability compromise of the affected host.
The flaw is classified as CWE-276: Incorrect Default Permissions and carries a CVSS v3.1 score of 7.8 (HIGH).
Affected Products
| Product | Affected Versions | Fixed Version |
|---|---|---|
| Dell Wyse Management Suite (WMS) | All versions prior to 2605.0.2 | 2605.0.2 |
Technical Details
CVE-2026-63700 stems from misconfigured default file and directory permissions within the WMS installation. A low-privileged local attacker with an existing foothold on the system can exploit these insecure defaults to escalate privileges.
CVSS v3.1 vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Key vector breakdown:
- Attack Vector (AV): Local — Requires local access to the system; not remotely exploitable
- Attack Complexity (AC): High — Exploitation is non-trivial and requires specific conditions
- Privileges Required (PR): Low — Only a low-privileged account is needed to attempt exploitation
- User Interaction (UI): None — No user action is required beyond the attacker's own access
- Scope (S): Changed — Successful exploitation impacts components beyond the vulnerable component's scope
- Impact: C:H / I:H / A:H — Full compromise of confidentiality, integrity, and availability
Advisory Context
CVE-2026-63700 is part of a cluster of three vulnerabilities addressed simultaneously in Dell Security Advisory DSA-2026-103. The companion flaws include:
- CVE-2026-63701 — Improper Deserialization of Untrusted Data (also pre-2605.0.2)
- CVE-2026-63702 — Use of Hard-coded Credentials (also pre-2605.0.2)
Organizations running Wyse Management Suite should treat DSA-2026-103 as a priority patch event — the trio of vulnerabilities could be chained by an attacker with initial local access to significantly amplify impact.
Impact
Dell Wyse Management Suite is the central management console for thin client endpoints in enterprise environments. A compromised WMS host gives an attacker administrative control over the entire thin client fleet — enabling lateral movement, policy manipulation, credential harvesting from managed endpoints, and persistent access across the organization's endpoint estate.
Mitigation
Dell has not identified a workaround. The sole recommended remediation is to upgrade to Dell Wyse Management Suite version 2605.0.2 or later as soon as possible.
- Download the update from the Dell Support portal
- Review DSA-2026-103 for complete advisory details
- Verify all three companion CVEs (CVE-2026-63700, -63701, -63702) are addressed by the upgrade
References
- Dell Security Advisory DSA-2026-103
- NVD Entry: CVE-2026-63700
- Dell Support: DSA-2026-103