CVE-2026-61720
FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the SF2 parser computes the DMOD modul
CVSS
6.2
Medio
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 18 sept 2026 · Última mod.: 18 sept 2026 · CWE-191
Sin historial EPSS suficiente todavía.
FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the SF2 parser computes the DMOD modulator count as chunk.size / SF_MOD_SIZE - 1 without rejecting chunks smaller than one record. A crafted SF2 file containing a zero-sized DMOD chunk makes the unsigned subtraction wrap to UINT_MAX, and the parser then attempts billions of SFMod allocations. This exhausts process memory and causes denial of service. No workaround is available. This issue is fixed in version 2.5.6.
CVECVSSEPSSKEVRExplotTítuloVis.
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