I cannot find the new vulnerability alerts and security advisories for CA Spectrum.
This information used to be here:
https://support.broadcom.com/aem/product-content/news/vulnerability-alerts/vulnerability-alerts---view-all.html
Release : 10.3
Component : Spectrum Core / SpectroSERVER
Vaious changes have been made to the support site. The security notices link you put is now redirecting to
https://support.broadcom.com/security-advisory/security-advisories-list.html?segment=ES
This is for the entire enterprise software division and can be filtered by product.
The new product news page is now populated at
https://support.broadcom.com/enterprise-software/product-page.html?productName=CA%20Spectrum