CVE intelligence and bounded remediation

CVE-2024-50376 — Advantech Eki-6333Ac-2G Firmware security vulnerability

High CVSS 7.3

A CWE-79 "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')" was discovered affecting the following devices manufactured by Advantech: EKI-6333AC-2G (<= 1.6.3), EKI-6333AC-2GD (<= v1.6.3) and EKI-6333AC-1GPO (<= v1.2.1). The vulnerability can be exploited remotely leveraging a rogue Wi-Fi access point with a malicious SSID.

Severity
High
CVSS
7.3 (3.1)
Published
2024-11-26
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-78, CWE-79

Affected products

  • advantech / eki-6333ac-2g_firmware
  • advantech / eki-6333ac-2gd_firmware
  • advantech / eki-6333ac-1gpo_firmware

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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