What’s Vulnerable › Vulnerabilities
CVE-2026-82945: Memory Corruption via FMMU Configuration Table Overflow
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-26 · updated 2026-10-26
- Weakness: CWE-120
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.
Affected products
- RT-Labs AB SOEM: before 2.0.1 — fixed in 2.0.1
How to fix
Upgrade to a fixed version: RT-Labs AB SOEM 2.0.1. Check the vendor advisory for mitigations.
References
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