3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests from a trusted OPC UA client that cause a NULL pointer dereference, which may trigger a denial-of-service condition.
The product dereferences a pointer that it expects to be valid but is NULL.
Link | Tags |
---|---|
https://www.us-cert.gov/ics/advisories/icsa-19-255-04 | third party advisory us government resource |