Microsoft Vulnerabilities Hit Record High, Critical Flaws Decline, Report Find

Microsoft's 2026 vulnerability landscape shows a dangerous trend where attackers are focusing on fewer but more severe flaws, particularly in Office and Azure environments. The doubling of critical vulnerabilities, especially privilege escalation bugs, demonstrates that threat actors are becoming more strategic in targeting high-impact vulnerabilities. The surge in Azure critical flaws and tripling of Office vulnerabilities highlights the growing attack surface of cloud and productivity platforms. Most concerning is the targeting of non-human identities like service accounts that typically lack multi-factor authentication, creating privileged access pathways for attackers.