Security readout for executives and security teams
Plain-English summary
Dell Wyse Management Suite versions before WMS 5.5 have a file-upload weakness that could let a highly privileged remote attacker execute code on the system. This is serious because successful compromise could affect confidentiality, integrity, and availability of the management platform.
Executive priority
Prioritize remediation for internet-exposed or broadly reachable WMS deployments. The attacker needs high privileges, but the potential result is remote code execution on a device management platform, which can create material operational and security risk.
Technical view
CVE-2026-22766 is a CWE-434 unrestricted upload of dangerous file type in Dell Wyse Management Suite prior to WMS 5.5. CVSS 3.1 is 7.2: network exploitable, low complexity, high privileges required, no user interaction, with high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is likely limited to organizations running Dell Wyse Management Suite before version 5.5, especially where the service is reachable over a network by privileged users or compromised privileged accounts.
Exploitation context
The CVE requires high privileges and remote access. The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Treat it as a high-impact post-authentication risk rather than confirmed in-the-wild exploitation.
Researcher notes
The provided CVE data identifies WMS versions prior to 5.5 and CWE-434, but does not include exploit details, indicators, or detailed affected build ranges. The affected metadata in the bundle is sparse, so use Dell’s advisory as the authority for exact version validation.
Mitigation direction
- Upgrade Dell Wyse Management Suite to WMS 5.5 or later per Dell guidance.
- Restrict network access to the management interface to trusted administrative paths.
- Review and minimize highly privileged WMS accounts.
- Monitor Dell advisory DSA-2026-103 for additional remediation details.
Validation and detection
- Inventory all Dell Wyse Management Suite deployments.
- Confirm each deployment version is WMS 5.5 or later.
- Check whether WMS is reachable from untrusted networks.
- Review privileged account assignments for unnecessary access.
- Consult Dell DSA-2026-103 for vendor-specific verification guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-22766 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.dell.com/support/kbdoc/en-us/000429141/dsa-2026-103CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.