CVE-2022-2758Network attack vector

PLC password recovery via weak protocol encryption

Published Aug 31, 2022 · Updated Apr 16, 2025

Inadequate encryption in LS ELECTRIC XG5000 before 4.0 and affected PLC firmware allows attackers to recover PLC passwords. The XG5000-to-PLC protocol protects transmitted passwords with encryption weak enough to reverse from captured communication traffic. Attackers must capture a password-bearing exchange; the recovered credential grants full access to the affected PLC.

CVSS severity6.5
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Inadequate encryption in LS ELECTRIC XG5000 before 4.0 and affected PLC firmware allows attackers to recover PLC passwords. The XG5000-to-PLC protocol protects transmitted passwords with encryption weak enough to reverse from captured communication traffic. Attackers must capture a password-bearing exchange; the recovered credential grants full access to the affected PLC.

The record

CVE
CVE-2022-2758
Published
Aug 31, 2022
Updated
Apr 16, 2025
Vendor
LS ELECTRIC
Product
XGK-CPUU/H/A/S/E
Classifications
CWE-326, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions <V3.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LS ELECTRIC · XGK-CPUU/H/A/S/Eversion=All versions <V3.50
LS ELECTRIC · XGR-CPUHversion=All versions <V1.80
LS ELECTRIC · XGB-XBCHversion=All versions <V1.90
LS ELECTRIC · XGB-XECHversion=All versions <V1.30
LS ELECTRIC · XG5000version=All versions <V4.0
LS ELECTRIC · XGI-CPUU/UD/H/S/Eversion=All versions <V3.20
LS ELECTRIC · XGB-XBMSversion=All versions <V3.00

Published CVSS scores

6.5CISACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
5.9NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-326Inadequate Encryption Strength
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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