A working CLI tool can be fetched from Git.
README.md
:get_msrc_cvrf.py: Extract CVE and KB references from Microsoft MSRC CVRF monthly bulletins. Description: - Downloads and caches the past N months of CVRF XML from the MSRC API. - Query unique CVEs for a given KB, or unique KBs for a given CVE. Usage: python get_msrc_cvrf.py --kb 5055518 python get_msrc_cvrf.py --cve CVE-2025-26663 --months 6 --cache-dir ./cache