Triangle Microworks TMW IEC 61850 Client source code libraries before 12.2.0 lack a buffer size check when processing received messages. The resulting buffer overflow can cause a crash, resulting in a denial of service.
https://www.cisa.gov/news-events/ics-advisories/icsa-24-256-16
https://trianglemicroworks.com/products/source-code-libraries/iec-61850-scl-pages/what%27s-new