CVE intelligence and bounded remediation

CVE-2022-2758 — Passwords are not adequately encrypted during the communication process between all versions of LS Industrial Systems (LSIS) Co

Medium CVSS 6.5

Passwords are not adequately encrypted during the communication process between all versions of LS Industrial Systems (LSIS) Co. Ltd LS Electric XG5000 software prior to V4.0 and LS Electric PLCs: all versions of XGK-CPUU/H/A/S/E prior to V3.50, all versions of XGI-CPUU/UD/H/S/E prior to V3.20, all versions of XGR-CPUH prior to V1.80, all versions of XGB-XBMS prior to V3.00, all versions of XGB-XBCH prior to V1.90, and all versions of XGB-XECH prior to V1.30. This would allow an attacker to identify and decrypt the password of the affected PLCs by sniffing the PLC’s communication traffic.

Severity
Medium
CVSS
6.5 (3.1)
Published
2022-08-31
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-326

Affected products

  • ls-electric / xg5000
  • ls-electric / xgk-cpuun_firmware
  • ls-electric / xgk-cpuhn_firmware
  • ls-electric / xgk-cpusn_firmware
  • ls-electric / xgk-cpuu_firmware
  • ls-electric / xgk-cpuh_firmware

Showing 6 representative product identities from 235 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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