How severe is CVE-2021-21586?

CVE-2021-21586 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21586 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21586?

CVE-2021-21586 affects Dell Wyse Management Suite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21586?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-21586 published?

CVE-2021-21586 was published on 2021-07-15 and last updated on 2026-06-17.

CVE-2021-21586

CVE-2021-21586 is a high-severity vulnerability in Dell Wyse Management Suite with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Dell Wyse Management Suite
Published: 2021-07-15
Last modified: 2026-06-17

Description

Wyse Management Suite versions 3.2 and earlier contain an absolute path traversal vulnerability. A remote authenticated malicious user could exploit this vulnerability in order to read arbitrary files on the system.

Frequently asked questions

What is CVE-2021-21586?: Wyse Management Suite versions 3.2 and earlier contain an absolute path traversal vulnerability. A remote authenticated malicious user could exploit this vulnerability in order to read arbitrary files on the system.
How severe is CVE-2021-21586?: CVE-2021-21586 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21586 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21586?: CVE-2021-21586 affects Dell Wyse Management Suite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21586?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-21586 published?: CVE-2021-21586 was published on 2021-07-15 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/000189363

Affected products (1)

cpe:2.3:a:dell:wyse_management_suite:*:*:*:*:*:*:*:*

More vulnerabilities in Dell Wyse Management Suite

CVE-2026-41120 — Critical (CVSS 9.8): Dell Wyse Management Suite, versions prior to WMS 5.5 HF1, contain an Acceptance of Extraneous Untrusted Data With…
CVE-2021-36336 — Critical (CVSS 9.8): Wyse Management Suite 3.3.1 and below versions contain a deserialization vulnerability that could allow an…
CVE-2026-44272 — High (CVSS 8.8): Dell Wyse Management Suite (WMS), versions prior to WMS 2605, contain an Improper Neutralization of Special Elements…
CVE-2026-22765 — High (CVSS 8.8): Dell Wyse Management Suite, versions prior to WMS 5.5, contain a Missing Authorization vulnerability. A low privileged…
CVE-2022-46754 — High (CVSS 8.7): Wyse Management Suite 3.8 and below contain an improper access control vulnerability. A authenticated malicious admin…
CVE-2022-29090 — High (CVSS 8.5): Dell Wyse Management Suite 3.6.1 and below contains a Sensitive Data Exposure vulnerability. A low privileged malicious…

All CVEs affecting Dell Wyse Management Suite →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-76606 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Path Traversal via image element in Fabrik < 4.7.3 - ???.
CVE-2026-18051 — Critical (CVSS 10.0): The W3 Total Cache WordPress plugin before 2.10.5 does not properly validate the request path it uses to build cache…
CVE-2026-74764 — Critical (CVSS 10.0): Pandora contains a path traversal vulnerability in its TAR archive extraction functionality. When processing a…
CVE-2026-16940 — Critical (CVSS 10.0): The Custom Fields WordPress plugin before 1.5.1 does not validate a user-supplied file path before deletion, allowing…
CVE-2026-67429 — Critical (CVSS 10.0): Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, image.download and related…
CVE-2026-59555 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.3 versions.

Browse all CWE-22 (Path Traversal) vulnerabilities →