What’s Vulnerable › Vulnerabilities

CVE-2021-21570

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-28 · updated 2026-06-17
• Weakness: CWE-78

Description

Dell NetWorker, versions 18.x and 19.x contain an Information disclosure vulnerability. A NetWorker server user with remote access to NetWorker clients may potentially exploit this vulnerability and gain access to unauthorized information.

Affected products

• Dell NetWorker: from 18.1.0.1 before 19.4.0.4 — fixed in 19.4.0.4

How to fix

Upgrade to a fixed version: Dell NetWorker 19.4.0.4. Check the vendor advisory for mitigations.

References

• https://www.dell.com/support/kbdoc/en-us/000188311/dsa-2021-124-dell-networker-security-update-for-multiple-vulnerabilities
• https://www.dell.com/support/kbdoc/en-us/000188311/dsa-2021-124-dell-networker-security-update-for-multiple-vulnerabilities

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