Microsoft and Adobe Patch Tuesday, December 2025 Security Update Review

**Executive summary:** The December 2025 Patch Tuesday advisory describes security updates addressing 72 Microsoft vulnerabilities (including three critical and multiple elevation-of-privilege and remote code execution flaws), 138 Adobe vulnerabilities, and three zero-day vulnerabilities—one of which has confirmed active exploitation—providing affected components, example CVEs, and remediation guidance (Qualys VMDR queries and patching instructions).