CVE-2022-2758

Update

6.5 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.40%Down 0.5 points since Sep 1, 2022

What each source reports

CVE List Score used 6.5

Update

Record: CVE-2022-2758
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-326
Updated: 2026-11-02

EUVDEUVD-2022-35000 6.5

Record: EUVD-2022-35000
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-vgvm-464w-97h8 5.9

All versions of LS Industrial Systems (LSIS) Co. Ltd LS Electric PLCs and XG5000 PLC programming...

All versions of LS Industrial Systems (LSIS) Co. Ltd LS Electric PLCs and XG5000 PLC programming software are affected where passwords are not adequately encrypted during the communication process between the XG5000 software and the affected PLC. This would allow an attacker to identify and decrypt the affected PLC’s password by sniffing the traffic.

Record: GHSA-vgvm-464w-97h8
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-326
Updated: 2026-11-02

NVD 6.5

Record: CVE-2022-2758
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-326
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-2758 is a medium vulnerability (CVSS 6.5) in Ls Industrial Systems (lsis) Co. Ltd Ls Electric Xg5000, published August 31, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. No source names a fixed version.