Bug 2553720 (CVE-2026-111123) - CVE-2026-111123 fluidsynth: fluidsynth: Denial of Service via crafted SoundFont file
Summary: CVE-2026-111123 fluidsynth: fluidsynth: Denial of Service via crafted SoundFo...
Keywords:
Status: NEW
Alias: CVE-2026-111123
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2554038 2554039 2554040
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-15 19:21 UTC by OSIDB Bzimport
Modified: 2026-10-16 12:15 UTC (History)
0 users

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2026-10-15 19:21:05 UTC 
FluidSynth through 2.6.1 contains an out-of-bounds write vulnerability that allows attackers to corrupt heap and stack memory by supplying unvalidated SoundFont modulator destination values. Attackers can craft an SF2 file with PMOD/IMOD destinations of 63 to 255 that, when loaded and played, write past the voice generator array and updated_gen_bit, causing memory corruption and crashes.
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