What is CVE-2021-21552?

CVE-2021-21552 is a medium-severity vulnerability in Dell Wyse 5070 Thin Client, classified under Incorrect Authorization. CVSS score: 5.2/10. Published 2021-05-21.

How severe is CVE-2021-21552?

Medium severity. CVSS v3 base score is 5.2 out of 10.

Auth bypass in Dell Wyse 5070 Thin Client

CVE-2021-21552

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.

Vulnerability class: Broken Access Control

Published 2021-05-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (61.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Dell Wyse 5070 Thin Client
Dell Wyse 5470 All-In-One Thin Client
Dell Wyse 5470 Thin Client
Dell Wyse Windows Embedded (Wes) — versions unspecified
Microsoft Windows 10

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

www.dell.com/support/kbdoc/en-us/000186134/dsa-2021-096-dell-wyse-windows-embed… (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21552?: CVE-2021-21552 is a medium-severity vulnerability in Dell Wyse 5070 Thin Client, classified under Incorrect Authorization. CVSS score: 5.2/10. Published 2021-05-21.
How severe is CVE-2021-21552?: Medium severity. CVSS v3 base score is 5.2 out of 10.