This updated advisory is a follow-up to the original advisory titled ICSA-21-103-14 Siemens Nucleus DNS that was published April 13, 2021, to the ICS webpage on www.cisa.gov/uscert. This advisory contains mitigations for a Use of Insufficiently Random Values vulnerability in Siemens Nucleus industrial software products.

https://us-cert.cisa.gov/ics/advisories/icsa-21-103-14