CVE-2021-21536

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-04-30 · updated 2026-06-17
Weakness: CWE-200

Description

Dell Hybrid Client versions prior to 1.5 contain an information exposure vulnerability. A local unauthenticated attacker may exploit this vulnerability in order to register the client to a server in order to view sensitive information.

Affected products

Dell Hybrid Client (DHC): before 1.5 — fixed in 1.5

How to fix

Upgrade to a fixed version: Dell Hybrid Client (DHC) 1.5. Check the vendor advisory for mitigations.

References

https://www.dell.com/support/kbdoc/en-us/000184667/dsa-2021-071-dell-hybrid-client-security-update-for-multiple-vulnerabilities
https://www.dell.com/support/kbdoc/en-us/000184667/dsa-2021-071-dell-hybrid-client-security-update-for-multiple-vulnerabilities

Get alerted when CVE-2021-21536 or the next vulnerability affects your stack