SOEM version 2.0.0 and earlier contains a vulnerability during device configuration where a malicious device can cause memory corruption. The software writes configuration data to a fixed-size array without checking if the array index exceeds its maximum size of EC_MAXFMMU entries. A device presenting more than EC_MAXFMMU configuration blocks can force writes beyond the array boundary, corrupting adjacent memory structures and potentially disrupting subsequent operations.
History

Tue, 03 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Rt-labs Ab
Rt-labs Ab soem
Vendors & Products Rt-labs Ab
Rt-labs Ab soem

Mon, 26 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 26 Oct 2026 09:00:00 +0000

Type Values Removed Values Added
Description SOEM version 2.0.0 and earlier contains a vulnerability during device configuration where a malicious device can cause memory corruption. The software writes configuration data to a fixed-size array without checking if the array index exceeds its maximum size of EC_MAXFMMU entries. A device presenting more than EC_MAXFMMU configuration blocks can force writes beyond the array boundary, corrupting adjacent memory structures and potentially disrupting subsequent operations.
Title Memory Corruption via FMMU Configuration Table Overflow
Weaknesses CWE-120
CWE-129
CWE-787
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: ENISA

Published: 2026-10-26T08:51:32.194Z

Updated: 2026-10-26T14:35:19.284Z

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

Link: CVE-2026-82945

cve-icon Vulnrichment

Updated: 2026-10-26T14:31:07.808Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-26T09:16:36.257

Modified: 2026-10-26T15:16:44.540

Link: CVE-2026-82945

cve-icon Redhat

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