CVE-2025-56225 Affecting fluidsynth package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.47% (39th percentile)

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  • Snyk IDSNYK-DEBIAN11-FLUIDSYNTH-14909065
  • published10 Jan 2026
  • disclosed9 Jan 2026

Introduced: 9 Jan 2026

CVE-2025-56225  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 fluidsynth.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fluidsynth package and not the fluidsynth package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

fluidsynth-2.4.6 and earlier versions is vulnerable to Null pointer dereference in fluid_synth_monopoly.c, that can be triggered when loading an invalid midi file.