CVE-2026-82944: high-severity vulnerability in RT-Labs AB SOEM
Buffer Overflow in CoE SDO Upload Multi-Segment Data Transfers
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.2%
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.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
RT-Labs AB · SOEMRelated CVEs — RT-Labs AB SOEM
In the same product, most dangerous first.
CVE-2026-70388HIGHMemory Corruption via Integer Underflow in Message Length ValidationEPSS 0.2%CVE-2026-82947HIGHMultiple Out-of-Bounds Reads in Frame ProcessingEPSS 0.2%CVE-2026-82946MEDIUMNull Pointer Dereference in Mailbox Error HandlingEPSS 0.2%CVE-2026-82945MEDIUMMemory Corruption via FMMU Configuration Table OverflowEPSS 0.2%CVE-2026-82943MEDIUMOut-of-Bounds Read via Unchecked Length ValuesEPSS 0.2%