CVE-2026-34085
fontconfig: Fontconfig: Security flaw allows arbitrary code execution or system crash
fontconfig before 2.17.1 has an off-by-one error in allocation during sfnt capability handling, leading to a one-byte out-of-bounds write, and potentially a crash or code execution. This is in FcFontCapabilities in fcfreetype.c.
CVSS 3.1 · 5.9 Medium
EPSS < 1%
KEV · Not listed
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