CVE-2026-111136

CVE-2026-111136 · libInstPatch through 1.1.7 Heap Out-of-Bounds Write via ipatch_sf2_gen_is_valid

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libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.

CVSS 6.9 · Medium · EPSS 0.2%

Published

2026-10-15T18:57:29.888Z

Updated

2026-10-15T19:48:10.296Z

Stack: system

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