Microsoft released a patch for a zero-day vulnerability, CVE-2026-68820, which is being exploited by cybercriminals, specifically the North Korean hacking group Lazarus. This vulnerability allows unauthorized attackers to elevate their privileges locally, posing a significant risk to affected systems. The August 2026 Patch Tuesday update addressed 421 vulnerabilities, including three zero-days, with CVE-2026-68820 being the only one confirmed to be actively exploited. The vulnerability's impacts on confidentiality, integrity, and availability are rated as High. Users of Microsoft Windows 10, Windows 11, and various versions of Windows Server should prioritize deploying the patch for this vulnerability.