cms parsing

## Overview A new OpenSSL security advisory has drawn attention to CVE-2026-28390, a low-severity denial-of-service flaw in CMS processing that can trigger a NULL pointer dereference when an application handles a crafted CMS EnvelopedData message using KeyTransportRecipientInfo with RSA-OAEP...

Microsoft’s CVE-2026-28389 entry points to a possible NULL dereference while processing CMS KeyAgreeRecipientInfo, and the immediate practical consequence is a denial-of-service condition rather than code execution. The vulnerability description explicitly frames the impact as a total loss of...