CVE-2026-82943
SOEM: Out-of-Bounds Read via Unchecked Length Values
RT-Labs AB SOEM
CVSS
6.5MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
What fixes it
- 2.0.1SOEMCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
SOEM version 2.0.0 and earlier contains vulnerabilities where a malicious device can send messages that cause the master to read data from memory locations beyond the intended buffer. The software uses length values from device responses without validating them against actual buffer sizes. An attacker can exploit this to extract up to 64KB of data from the master's memory.
Text from CVE List
Affected versions 1
- SOEMaffected: all versions before 2.0.1CVE List