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.
Metrics
Affected Vendors & Products
References
History
Tue, 03 Nov 2026 17:00:00 +0000
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Rt-labs Ab
Rt-labs Ab soem |
Tue, 03 Nov 2026 10:30:00 +0000
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ssvc
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Mon, 26 Oct 2026 09:00:00 +0000
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| 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 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: ENISA
Published: 2026-10-26T08:47:50.412Z
Updated: 2026-11-02T20:58:07.637Z
Reserved: 2026-08-31T12:26:22.054Z
Link: CVE-2026-82944
Updated: 2026-11-02T20:58:03.729Z
Status : Awaiting Analysis
Published: 2026-10-26T09:16:36.140
Modified: 2026-11-02T21:17:39.540
Link: CVE-2026-82944
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