Here’s what Microsoft fixed in September’s Patch Tuesday

Microsoft’s September Patch Tuesday addresses 79 vulnerabilities, including multiple zero-days and several flaws that are being actively exploited in the wild. Critical issues affect Windows Installer, Windows Update (which can remove patches and enable further exploitation), Office Publisher (macro bypass), and the Mark of the Web feature; Microsoft and CISA have highlighted and mitigated several of these with security updates and KEV entries.