CVE intelligence and bounded remediation

CVE-2023-43776 — Eaton easyE4 PLC offers a device password protection functionality to facilitate a secure connection and prevent unauthorized access

Medium CVSS 6.8

Eaton easyE4 PLC offers a device password protection functionality to facilitate a secure connection and prevent unauthorized access. It was observed that the device password was stored with a weak encoding algorithm in the easyE4 program file when exported to SD card (*.PRG file ending).

Severity
Medium
CVSS
6.8 (3.1)
Published
2023-10-17
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-261, CWE-326

Affected products

  • eaton / easy-box-e4-ac1_firmware
  • eaton / easy-box-e4-dc1_firmware
  • eaton / easy-box-e4-uc1_firmware
  • eaton / easy-e4-ac-12rc1p_firmware
  • eaton / easy-e4-ac-12rcx1p_firmware
  • eaton / easy-e4-ac-16re1p_firmware

Showing 6 representative product identities from 22 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Cryptography, certificate, signature, and channel validation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Inventory affected algorithms, key uses, trust stores, certificate validation settings, random sources, and plaintext channels across clients and services.
  • Determine which secrets, identities, signatures, or data protections depend on the affected primitive or validation path.
  • Check debug, compatibility, fallback, and hostname or audience override settings in build and runtime configuration.

Remediate safely

  • Use a maintained platform cryptographic API with approved algorithms, modes, parameters, randomness, and full peer identity validation.
  • Remove insecure fallback and validation bypasses; separate keys by purpose and load them from managed secret storage.
  • Plan rotation or reissuance for affected keys, certificates, tokens, hashes, or ciphertext and document compatibility sequencing.

Authoritative sources

Complete CVE record and remediation plan

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