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TI-2021-04637 Aliases CVE-2021-21552GHSA-c5g9-x4gm-2c84

Incorrect authorization in Dell Wyse Windows Embedded

Priority MEDIUM 40CWE-863Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

Dell Wyse Windows Embedded System versions WIE10 LTSC 2019 and earlier contain an improper authorization vulnerability. A local authenticated malicious user with low privileges may potentially exploit this vulnerability to bypass the restricted environment and perform unauthorized actions on the affected system.

Why it matters now

EPSS 0.00995 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
DellWyse Windows Embedded (WES)up to WIE10 LTSC 2019—No fix listedCNA
  • Wyse Windows Embedded (WES) VendorDell Affected up to WIE10 LTSC 2019 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_10:*:*:*:*:enterprise_ltsc:*:*:*up to 2019VulnerableMicrosoft
cpe:2.3:h:dell:wyse_5070_thin_client:-:*:*:*:*:*:*:*not specified by NVDRunning onDell
cpe:2.3:h:dell:wyse_5470_all-in-one_thin_client:-:*:*:*:*:*:*:*not specified by NVDRunning onDell
cpe:2.3:h:dell:wyse_5470_thin_client:-:*:*:*:*:*:*:*not specified by NVDRunning onDell
  • cpe:2.3:o:microsoft:windows_10:*:*:*:*:enterprise_ltsc:*:*:* Versions up to 2019 Vulnerable ·Microsoft
  • cpe:2.3:h:dell:wyse_5070_thin_client:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dell
  • cpe:2.3:h:dell:wyse_5470_all-in-one_thin_client:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dell
  • cpe:2.3:h:dell:wyse_5470_thin_client:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dell

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21552
  2. 2026-10-03 Alias added: GHSA-c5g9-x4gm-2c84

References

  • TI-2026-18287 Hard-coded credentials in Dell RecoverPoint for Virtual Machines KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-04636 Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which… KEVCVSS 3.1HIGH 8.8
  • TI-2025-24909 OS command injection in Dell Unity CVSS 3.1CRITICAL 9.8
  • TI-2018-01121 Dell EMC iDRAC7/iDRAC8, versions prior to 2.52.52.52, contain CGI injection vulnerability… CVSS 3.0CRITICAL 9.8
  • TI-2020-09565 The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds Read. KEVCVSS 3.1MEDIUM 5.4
  • TI-2022-08298 Improper authentication in Dell Integrated Dell Remote Access Controller 9 CVSS 3.1CRITICAL 9.8
See all 2081 →

Sources