Windows CryptoAPI Denial of Service Vulnerability CVE-2021-1679 Security Vulnerability Released: Jan 12, 2021 Assigning CNA: Microsoft Impact: Denial of Service Max Severity: Important CVSS Source: Microsoft CVSS:3.1 6.5 / 5.7 Temporal score metrics (3) References: Microsoft Security Advisory Microsoft Knowledge Base Additional Information: Description: The vulnerability affects the Windows CryptoAPI and can lead to a denial of service. Solution: Apply the latest security updates from Microsoft. Impact: The vulnerability could allow an attacker to cause a system to become unresponsive or unavailable. Contact Information: Microsoft Security Response Center: Contact Us Microsoft Security Advisory: Report a Security Issue Further Reading: Microsoft Security Advisory Microsoft Knowledge Base