SOEM version 2.0.0 and earlier contains a vulnerability where a malicious device can crash the master system. When the software receives an error response, it clears an internal pointer but continues processing. If another message arrives before timeout, the software attempts to use the cleared pointer, causing a crash. An attacker can trigger this with a simple sequence of two messages.
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History
Tue, 03 Nov 2026 17:00:00 +0000
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Mon, 26 Oct 2026 15:30:00 +0000
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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 where a malicious device can crash the master system. When the software receives an error response, it clears an internal pointer but continues processing. If another message arrives before timeout, the software attempts to use the cleared pointer, causing a crash. An attacker can trigger this with a simple sequence of two messages. | |
| Title | Null Pointer Dereference in Mailbox Error Handling | |
| Weaknesses | CWE-476 CWE-690 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: ENISA
Published: 2026-10-26T08:55:20.654Z
Updated: 2026-10-26T14:35:19.142Z
Reserved: 2026-08-31T12:26:22.054Z
Link: CVE-2026-82946
Updated: 2026-10-26T14:31:02.167Z
Status : Awaiting Analysis
Published: 2026-10-26T09:16:36.363
Modified: 2026-10-26T15:16:44.657
Link: CVE-2026-82946
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