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cff/cf2intrp.c in the CFF CharString interpreter in FreeType before 2.5.4 proceeds with additional hints after the hint mask has been computed, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted OpenType font. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-2240.
Use CWE-119, Oracle vendor hub and Solaris product page to widen CVE-2014-9659 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2025-36038, CVE-2025-36128 and CVE-2026-34281 for nearby disclosures in the same product family.