High severity7.2NVD Advisory· Published Apr 29, 2021· Updated Jun 17, 2026
CVE-2021-21417
CVE-2021-21417
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:a:fluidsynth:fluidsynth:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:fluidsynth:fluidsynth:*:*:*:*:*:*:*:*range: <2.1.8
- (no CPE)
- (no CPE)range: < 2.1.8
Patches
Vulnerability mechanics
References
4- github.com/FluidSynth/fluidsynth/issues/808nvdExploitThird Party Advisory
- github.com/FluidSynth/fluidsynth/pull/810nvdExploitIssue TrackingPatchThird Party Advisory
- github.com/FluidSynth/fluidsynth/security/advisories/GHSA-6fcq-pxhc-jxc9nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/06/msg00027.htmlnvdMailing ListThird Party Advisory
News mentions
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