CVE-2023-2003Network attack vector

Unauthenticated code execution via PCOM data-table storage

Published Jul 13, 2023 · Updated Oct 30, 2024

Embedded malicious code in Unitronics Vision1210 OS 4.3 build 5 allows remote attackers to execute code through unauthenticated PCOM access. The controller accepts base64-encoded malicious code into its data tables over PCOM, allowing a client to retrieve and execute it on the device. Network access to a PCOM-enabled interface is sufficient, exposing controller data and enabling service interruption without reported data modification.

CVSS severity9.1
Critical
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Embedded malicious code in Unitronics Vision1210 OS 4.3 build 5 allows remote attackers to execute code through unauthenticated PCOM access. The controller accepts base64-encoded malicious code into its data tables over PCOM, allowing a client to retrieve and execute it on the device. Network access to a PCOM-enabled interface is sufficient, exposing controller data and enabling service interruption without reported data modification.

The record

CVE
CVE-2023-2003
Published
Jul 13, 2023
Updated
Oct 30, 2024
Vendor
Unitronics
Product
Vision1210
Classifications
CWE-506, T0871
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 2024Record 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=4.3, build 5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Unitronics · Vision1210version=4.3, build 5

Published CVSS scores

9.1INCIBE-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 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-506Embedded Malicious Code
T0871Execution through API

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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