CVE-2023-0103Network attack vector

Device halt via out-of-buffer memory access

Published Feb 15, 2023 · Updated Jan 16, 2025

Out-of-bounds memory access in LS ELECTRIC XBC-DN32U 01.80 allows remote attackers to halt the PLC over the network. Requests addressing memory beyond the communication buffer make the controller access an out-of-range location and stop operating. The network path requires no authentication or user interaction, and exploitation is limited to an availability interruption.

CVSS severity7.5
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds memory access in LS ELECTRIC XBC-DN32U 01.80 allows remote attackers to halt the PLC over the network. Requests addressing memory beyond the communication buffer make the controller access an out-of-range location and stop operating. The network path requires no authentication or user interaction, and exploitation is limited to an availability interruption.

The record

CVE
CVE-2023-0103
Published
Feb 15, 2023
Updated
Jan 16, 2025
Vendor
LS ELECTRIC
Product
XBC-DN32U
Classifications
CWE-788, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 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=Operating System Version 01.80

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LS ELECTRIC · XBC-DN32Uversion=Operating System Version 01.80

Published CVSS scores

7.5ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-788Access of Memory Location After End of Buffer
T0814Denial of Service

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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