Key Findings Microsoft released 57 vulnerabilities in the December 2025 Patch Tuesday, including 2 "critical" and the rest "important" Microsoft assessed that exploitation of the 2 "critical" vulnerabilities is "less likely" Cisco Talos is releasing new Snort rules to detect attempts to exploit some of the disclosed vulnerabilities Background This month's Patch Tuesday addresses a range of vulnerabilities, including: CVE-2025-62562: Microsoft Outlook remote code execution vul