CVE-2026-82945
Memory Corruption via FMMU Configuration Table Overflow
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 CWE-129 CWE-120 |
| 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
f0rw4rd / quellsec.dev, Brian Willows / graith.co.uk