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A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi-master font - Adobe Type 1 PostScript format.For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely, aka 'Adobe Font Manager Library Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0938.
Use CWE-787, Microsoft vendor hub and Windows 10 1507 product page to widen CVE-2020-1020 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2025-59295, CVE-2025-64680 and CVE-2025-64679 for nearby disclosures in the same product family. Additional editorial context is available in Weekly Security Roundup: Navigating the April 2026 Threat Landscape and Critical Framework Exploits.