CVE intelligence and bounded remediation

CVE-2023-25539 — Dell NetWorker 19.6.1.2, contains an OS command injection Vulnerability in the NetWorker client

Critical CVSS 9.8

Dell NetWorker 19.6.1.2, contains an OS command injection Vulnerability in the NetWorker client. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to the execution of arbitrary OS commands on the application's underlying OS, with the privileges of the vulnerable application. This is a high severity vulnerability as the exploitation allows an attacker to take complete control of a system, so Dell recommends customers to upgrade at the earliest opportunity.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-05-31
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-94, CWE-78

Affected products

  • dell / networker
  • dell / networker / 19.7.1

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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