Security News > 2022 > December > Microsoft December 2022 Patch Tuesday fixes 2 zero-days, 49 flaws
Today is Microsoft's December 2022 Patch Tuesday, and with it comes fixes for two zero-day vulnerabilities, including an actively exploited bug, and a total of 49 flaws.
Six of the 49 vulnerabilities fixed in today's update are classified as 'Critical' as they allow remote code execution, one of the most severe types of vulnerabilities.
The above counts do not include twenty-five Microsoft Edge vulnerabilities previously fixed on December 5th. For information about the non-security Windows updates, you can read today's articles on the Windows 10 KB5021233 and KB5021237 updates and the Windows 11 KB5021255 and KB5021234 updates.
This month's Patch Tuesday fixes two zero-day vulnerabilities, one actively exploited and the other publicly disclosed.
Below is the complete list of resolved vulnerabilities and released advisories in the December 2022 Patch Tuesday updates.
Microsoft October 2022 Patch Tuesday fixes zero-day used in attacks, 84 flaws.
News URL
Related news
- Microsoft March 2025 Patch Tuesday fixes 7 zero-days, 57 flaws (source)
- Patch Tuesday: Microsoft Fixes 57 Security Flaws – Including Active Zero-Days (source)
- Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws (source)
- Patch Tuesday: Microsoft Fixes 134 Vulnerabilities, Including 1 Zero-Day (source)
- Choose your own Patch Tuesday adventure: Start with six zero day fixes, or six critical flaws (source)
- April 2025 Patch Tuesday forecast: More AI security introduced by Microsoft (source)
- March 2025 Patch Tuesday forecast: A return to normalcy (source)
- Apple Releases Patch for WebKit Zero-Day Vulnerability Exploited in Targeted Attacks (source)
- URGENT: Microsoft Patches 57 Security Flaws, Including 6 Actively Exploited Zero-Days (source)
- Microsoft patches Windows Kernel zero-day exploited since 2023 (source)