Out-of-bounds Write Affecting fluidsynth package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.2% (9th percentile)

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  • Snyk IDSNYK-ECHOLATEST-FLUIDSYNTH-21004838
  • published16 Oct 2026
  • disclosed15 Oct 2026

Introduced: 15 Oct 2026

NewCVE-2026-111123  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest fluidsynth.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fluidsynth package and not the fluidsynth package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1