What’s Vulnerable › Vulnerabilities
CVE-2026-70388: Memory Corruption via Integer Underflow in Message Length Validation
- Severity: high (CVSS 8.3 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-191
Description
SOEM version 2.0.0 and earlier contains vulnerabilities where a malicious device on the network can send specially crafted messages that cause the master to write data outside allocated memory boundaries. The software performs arithmetic on message length values without proper validation, allowing negative or extremely large values to bypass safety checks. This can corrupt memory and potentially allow an attacker to execute arbitrary code on the master system.
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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