This page lists publicly disclosed CVE vulnerabilities affecting fluidsynth fluidsynth (linked via NVD CPE). Each row includes severity scores, summaries, and publication dates to help identify and analyze security issues.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2025-56225 | 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. | [email protected] | 7.5 | 0.02% | 2026-01-09 | 2026-01-23 |
| CVE-2025-68617 | FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From versions 2.5.0 to before 2.5.2, a race condition during unloading of a DLS file can trigger a heap-based use-after-free. A concurrently running thread may be pending to unload a DLS file, leading to use of freed memory, if the synthesizer is being concurrently destroyed, or samples of the (unloaded) DLS file are concurrently used to synthesize audio. This issue has been patched in version 2.5.2. The problem will n | [email protected] | 7.0 | 0.01% | 2025-12-23 | 2026-01-15 |
| CVE-2021-21417 | fluidsynth is a software synthesizer based on the SoundFont 2 specifications. A use after free violation was discovered in fluidsynth, that can be triggered when loading an invalid SoundFont file. | [email protected] | 7.2 | 0.43% | 2021-04-29 | 2024-11-21 |