CVE-2026-82946
Null Pointer Dereference in Mailbox Error Handling
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-476 CWE-690 |
| Vendor | rt-labs ab |
| Product | soem |
| Published | Oct 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
RT-Labs AB / SOEM
0 < 2.0.1
References
Credits
alosafuzz