CVE-2026-61723

A flaw was found in FluidSynth. The native DLS parser, when processing ptbl chunks, does not properly validate the size calculation, leading to an integer overflow. A remote attacker could craft a malicious DLS file that, when processed, causes the application to attempt to allocate an excessive...

CVE-2026-61722

A flaw was found in FluidSynth, a software synthesizer. This vulnerability, an integer overflow, exists in the native DLS Downloadable Sounds parser when it validates articulation chunks. A remote attacker could exploit this by providing a specially crafted DLS file, which causes the parser to...

CVE-2026-61721

A flaw was found in FluidSynth, a software synthesizer. The native DLS Downloadable Sounds loader, responsible for processing sound samples, does not properly validate certain values within crafted DLS files. This oversight allows an attacker to define sample loop points that extend beyond the...

CVE-2026-61721

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS loader assigns file-controlled wsmp.loopstart and wsmp.looplength values to samples without calling fluidsamplevalidate or fluidsamplesanitizeloop. A crafted DLS file can place...

CVE-2026-61722

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates articulation chunks using the unsigned expression cbsize + connblocks 12 without first ensuring that the multiplication and addition fit in 32 bits. A crafted DLS...

CVE-2026-61723

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates ptbl chunks with the unsigned expression cues 4 + cbsize without checking whether the multiplication and addition fit in 32 bits. A crafted DLS file can supply a...

UBUNTU-CVE-2026-61723

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates ptbl chunks with the unsigned expression cues 4 + cbsize without checking whether the multiplication and addition fit in 32 bits. A crafted DLS file can supply a...

CVE-2026-61723

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates ptbl chunks with the unsigned expression cues 4 + cbsize without checking whether the multiplication and addition fit in 32 bits. A crafted DLS file can supply a...

UBUNTU-CVE-2026-61721

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS loader assigns file-controlled wsmp.loopstart and wsmp.looplength values to samples without calling fluidsamplevalidate or fluidsamplesanitizeloop. A crafted DLS file can place...

CVE-2026-61723 FluidSynth: DLS ptbl Chunk Integer Overflow

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates ptbl chunks with the unsigned expression cues 4 + cbsize without checking whether the multiplication and addition fit in 32 bits. A crafted DLS file can supply a...

EUVD-2026-83378

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates ptbl chunks with the unsigned expression cues 4 + cbsize without checking whether the multiplication and addition fit in 32 bits. A crafted DLS file can supply a...

CVE-2026-61723

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates ptbl chunks with the unsigned expression cues 4 + cbsize without checking whether the multiplication and addition fit in 32 bits. A crafted DLS file can supply a...

CVE-2026-61723 FluidSynth: DLS ptbl Chunk Integer Overflow

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates ptbl chunks with the unsigned expression cues 4 + cbsize without checking whether the multiplication and addition fit in 32 bits. A crafted DLS file can supply a...

EUVD-2026-83377

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates articulation chunks using the unsigned expression cbsize + connblocks 12 without first ensuring that the multiplication and addition fit in 32 bits. A crafted DLS...

CVE-2026-61722 FluidSynth: DLS Articulation Chunk Integer Overflow

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates articulation chunks using the unsigned expression cbsize + connblocks 12 without first ensuring that the multiplication and addition fit in 32 bits. A crafted DLS...

CVE-2026-61722 FluidSynth: DLS Articulation Chunk Integer Overflow

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates articulation chunks using the unsigned expression cbsize + connblocks 12 without first ensuring that the multiplication and addition fit in 32 bits. A crafted DLS...

CVE-2026-61722 FluidSynth: DLS Articulation Chunk Integer Overflow

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates articulation chunks using the unsigned expression cbsize + connblocks 12 without first ensuring that the multiplication and addition fit in 32 bits. A crafted DLS...

CVE-2026-61722

FluidSynth (a software synthesizer based on the SoundFont 2 specifications) has an integer overflow in its native DLS parser's articulation chunk validation. The unsigned expression cbsize + connblocks * 12 overflows in 32-bit arithmetic when a crafted DLS file supplies a large connblocks value (...

EUVD-2026-83375

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS loader assigns file-controlled wsmp.loopstart and wsmp.looplength values to samples without calling fluidsamplevalidate or fluidsamplesanitizeloop. A crafted DLS file can place...

CVE-2026-61721 FluidSynth: Heap-based buffer overrun for DLS samples

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS loader assigns file-controlled wsmp.loopstart and wsmp.looplength values to samples without calling fluidsamplevalidate or fluidsamplesanitizeloop. A crafted DLS file can place...