Description
SOEM version 2.0.0 and earlier contains a vulnerability in multi-segment data transfers where a malicious device can overflow memory buffers. The software checks the total size only once at the beginning, but doesn't track the cumulative size as multiple segments arrive. An attacker can declare a small initial size to pass validation, then send additional segments that exceed the allocated buffer. This allows the attacker to write controlled data beyond buffer boundaries, potentially enabling code execution.
Published: 2026-10-26
Score: 8.8 High
EPSS: n/a
KEV: No
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 09:00:00 +0000

Type Values Removed Values Added
Description SOEM version 2.0.0 and earlier contains a vulnerability in multi-segment data transfers where a malicious device can overflow memory buffers. The software checks the total size only once at the beginning, but doesn't track the cumulative size as multiple segments arrive. An attacker can declare a small initial size to pass validation, then send additional segments that exceed the allocated buffer. This allows the attacker to write controlled data beyond buffer boundaries, potentially enabling code execution.
Title Buffer Overflow in CoE SDO Upload Multi-Segment Data Transfers
Weaknesses CWE-120
CWE-131
CWE-787
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: ENISA

Published:

Updated: 2026-10-26T08:47:50.412Z

Reserved: 2026-08-31T12:26:22.054Z

Link: CVE-2026-82944

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-26T09:16:36.140

Modified: 2026-10-26T09:16:36.140

Link: CVE-2026-82944

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T10:30:10Z

Weaknesses
  • CWE-120

    Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

  • CWE-131

    Incorrect Calculation of Buffer Size

  • CWE-787

    Out-of-bounds Write