Description
SOEM version 2.0.0 and earlier contains vulnerabilities where a malicious device on the network can send specially crafted messages that cause the master to write data outside allocated memory boundaries. The software performs arithmetic on message length values without proper validation, allowing negative or extremely large values to bypass safety checks. This can corrupt memory and potentially allow an attacker to execute arbitrary code on the master system.
Published: 2026-10-26
Score: 8.3 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 26 Oct 2026 08:45:00 +0000

Type Values Removed Values Added
Description SOEM version 2.0.0 and earlier contains vulnerabilities where a malicious device on the network can send specially crafted messages that cause the master to write data outside allocated memory boundaries. The software performs arithmetic on message length values without proper validation, allowing negative or extremely large values to bypass safety checks. This can corrupt memory and potentially allow an attacker to execute arbitrary code on the master system.
Title Memory Corruption via Integer Underflow in Message Length Validation
Weaknesses CWE-191
CWE-195
CWE-787
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: ENISA

Published:

Updated: 2026-10-26T08:34:24.036Z

Reserved: 2026-08-04T07:41:00.082Z

Link: CVE-2026-70388

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-26T09:16:35.860

Modified: 2026-10-26T13:45:21.740

Link: CVE-2026-70388

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T09:30:11Z

Weaknesses
  • CWE-191

    Integer Underflow (Wrap or Wraparound)

  • CWE-195

    Signed to Unsigned Conversion Error

  • CWE-787

    Out-of-bounds Write