What’s Vulnerable › Vulnerabilities

CVE-2021-21542

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% 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-79

Description

Dell EMC iDRAC9 versions prior to 4.40.10.00 contain multiple stored cross-site scripting vulnerabilities. A remote authenticated malicious user with high privileges could potentially exploit these vulnerabilities to store malicious HTML or JavaScript code through multiple affected while generating a certificate. When victim users access the submitted data through their browsers, the malicious code gets executed by the web browser in the context of the vulnerable application.

Affected products

• Dell EMC iDRAC: before 4.40.00.00 — fixed in 4.40.00.00

How to fix

Upgrade to a fixed version: Dell EMC iDRAC 4.40.00.00. Check the vendor advisory for mitigations.

References

• https://www.dell.com/support/kbdoc/000185293
• https://www.dell.com/support/kbdoc/000185293

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