Security News > 2020 > December > Microsoft December 2020 Patch Tuesday fixes 58 vulnerabilities

With the December 2020 Patch Tuesday security updates release, Microsoft has released fixes for 58 vulnerabilities and one advisory for Microsoft products.
Of the 58 vulnerabilities fixed today, nine are classified as Critical, 48 as Important, and two as Moderate.
There are no zero-day or previously disclosed vulnerabilities fixed in the December 2020 updates.
Included in today's Patch Tuesday updates is an advisory for a DNS cache poisoning vulnerability discovered by security researchers from Tsinghua University and the University of California.
Below is the full list of resolved vulnerabilities and released advisories in the December 2020 Patch Tuesday updates.
News URL
Related news
- Microsoft January 2025 Patch Tuesday fixes 8 zero-days, 159 flaws (source)
- Microsoft February 2025 Patch Tuesday fixes 4 zero-days, 55 flaws (source)
- February's Patch Tuesday sees Microsoft offer just 63 fixes (source)
- Microsoft’s Patch Tuesday Fixes 63 Flaws, Including Two Under Active Exploitation (source)
- Patch Tuesday: Microsoft Patches Two Actively Exploited Zero-Day Flaws (source)
- January 2025 Patch Tuesday forecast: Changes coming in cybersecurity guidance (source)
- Week in review: Exploited Ivanti Connect Secure zero-day, Patch Tuesday forecast (source)
- Rsync vulnerabilities allow remote code execution on servers, patch quickly! (source)
- Patch Tuesday: January 2025 Security Update Patches Exploited Elevation of Privilege Attacks (source)
- Windows Patch Tuesday hits snag with Citrix software, workarounds published (source)