6.5 Medium

SOEM version 2.0.0 and earlier contains a vulnerability where a malicious device can crash the master system.

CVE-2026-82946

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.

Assessment

CVSS: 6.5 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 26 October 2026
Last updated: 26 October 2026
Weakness: CWE-476, CWE-690
Assigner: a6d3dc9e-0591-4a13-bce7-0f5b31ff6158

CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

At the source

References

https://rt-labs.com/wp-content/uploads/2026/10/RRTL-260921-01.pdf

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