{"kind": "product", "path": "vulns/debian-14/fluidsynth", "name": "fluidsynth", "product": "fluidsynth", "ecosystem": "Debian:14", "items": [{"id": "CVE-2026-111123", "noindex": false, "published": "2026-10-15T18:57:20.663Z", "modified": "2026-10-15T19:46:31.057Z", "cvss": 6.9, "cvss_vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.00198, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-111123", "title": "FluidSynth through 2.6.1 Out-of-Bounds Write via SoundFont Modulator Destination", "description": "FluidSynth through 2.6.1 contains an out-of-bounds write vulnerability that allows attackers to corrupt heap and stack memory by supplying unvalidated SoundFont modulator destination values. Attackers can craft an SF2 file with PMOD/IMOD destinations of 63 to 255 that, when loaded and played, write past the voice generator array and updated_gen_bit, causing memory corruption and crashes.", "references": ["https://hackmd.io/@haind-pwn/fluidsynth-sf2-modulator-dest-generator-oob-write", "https://github.com/FluidSynth/fluidsynth/blob/71e85b2ca6bf48641ba7e2261d8f2640ae473773/src/synth/fluid_voice.c#L615-L623", "https://github.com/FluidSynth/fluidsynth/blob/71e85b2ca6bf48641ba7e2261d8f2640ae473773/src/synth/fluid_voice.c#L1184-L1229"], "fixes": [], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2026-61720", "noindex": false, "published": "2026-09-18T20:03:43.989Z", "modified": "2026-09-21T16:27:25.573Z", "cvss": 6.2, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "medium", "epss": 0.00184, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-61720", "title": "FluidSynth: SF2 DMOD Chunk Unsigned Underflow", "description": "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.", "references": ["https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-rmc4-c8hw-455w", "https://github.com/FluidSynth/fluidsynth/commit/096e1ff0d09ddcac83d94923440706f76f94bc44", "https://github.com/FluidSynth/fluidsynth/releases/tag/v2.5.6"], "fixes": ["2.5.6+dfsg-1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2026-61723", "noindex": false, "published": "2026-09-18T20:02:47.793Z", "modified": "2026-09-21T20:47:48.803Z", "cvss": 6.8, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "severity": "medium", "epss": 0.00184, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-61723", "title": "FluidSynth: DLS ptbl Chunk Integer Overflow", "description": "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 large cues value that wraps the expression and passes the chunk-size check, causing poolcues.resize(cues) to request approximately four gigabytes and the parser to read billions of entries beyond the chunk boundary. The excessive allocation and invalid reads can cause denial of service. Builds with enable-native-dls set to OFF are not exposed. This i", "references": ["https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-r4mc-v3p8-pv47", "https://github.com/FluidSynth/fluidsynth/commit/a2ab32b9c3b9f8845b7254adea73c211f6c5a24c", "https://github.com/FluidSynth/fluidsynth/releases/tag/v2.5.6"], "fixes": ["2.5.6+dfsg-1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2026-61722", "noindex": false, "published": "2026-09-18T20:01:58.603Z", "modified": "2026-09-22T15:44:05.935Z", "cvss": 6.8, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "severity": "medium", "epss": 0.00198, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-61722", "title": "FluidSynth: DLS Articulation Chunk Integer Overflow", "description": "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 file can supply a large connblocks value that wraps the expression and bypasses the chunk-size check, after which the parser performs approximately one billion 12-byte iterations beyond the chunk boundary. The excessive processing and invalid reads can cause denial of service. Builds with the CMake option enable-native-dls set to OFF do not expose t", "references": ["https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-hp72-35pr-6h6r", "https://github.com/FluidSynth/fluidsynth/commit/4d7084fca7c876f5d738498b4917a39faf603425", "https://github.com/FluidSynth/fluidsynth/releases/tag/v2.5.6"], "fixes": ["2.5.6+dfsg-1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2026-61714", "noindex": false, "published": "2026-09-18T20:01:14.342Z", "modified": "2026-09-25T16:13:08.897Z", "cvss": 7.8, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "severity": "high", "epss": 0.00143, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-61714", "title": "FluidSynth: Heap Buffer Overflow in MIDI Player", "description": "FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.2.4 until 2.5.6, configuring synth.midi-channels above 16 allows the MIDI player to index _fluid_player_t::channel_isplaying outside its fixed-size heap allocation while tracking active channels. The resulting out-of-bounds reads and writes invoke undefined behavior and may compromise confidentiality, integrity, or availability. No crafted MIDI file is required because the unsafe condition is created by the channel-count configuration itself. Keeping synth.midi-channels at its default value of 16 avoids the vulnerable path. This issue is fixed in version 2.5.", "references": ["https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-976m-35rw-h3m6", "https://github.com/FluidSynth/fluidsynth/commit/772702e00cc6acc7c607efb40283e2269211effc", "https://github.com/FluidSynth/fluidsynth/releases/tag/v2.5.6"], "fixes": ["2.5.6+dfsg-1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2026-61721", "noindex": false, "published": "2026-09-18T20:00:29.403Z", "modified": "2026-09-18T20:21:42.856Z", "cvss": 8, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H", "severity": "high", "epss": 0.00192, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-61721", "title": "FluidSynth: Heap-based buffer overrun for DLS samples", "description": "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.loop_start and wsmp.loop_length values to samples without calling fluid_sample_validate() or fluid_sample_sanitize_loop(). A crafted DLS file can place sample loop points beyond the sample buffer, causing out-of-bounds reads during audio rendering, undefined behavior, possible memory disclosure, and denial of service. Builds compiled with the CMake option enable-native-dls set to OFF do not expose the affected parser. This issue is fixed in version 2.5.6.", "references": ["https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-59ph-rx8r-8p4j", "https://github.com/FluidSynth/fluidsynth/commit/2354c2a9acdb26de7cdcd37c903ee108f46c0a7d", "https://github.com/FluidSynth/fluidsynth/releases/tag/v2.5.6"], "fixes": ["2.5.6+dfsg-1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2026-58264", "noindex": false, "published": "2026-09-18T19:59:39.880Z", "modified": "2026-09-21T20:47:56.341Z", "cvss": 9.8, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "severity": "critical", "epss": 0.00586, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-58264", "title": "FluidSynth: Heap-based buffer overrun", "description": "FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 1.1.2 until 2.5.6, the FluidSynth command handler accepts a pitch_bend_range command whose channel argument is not bounds checked before the supplied value is written through the selected synth channel. An out-of-range channel can therefore cause an out-of-bounds heap write, leading to denial of service or possible code execution. The issue is remotely reachable when the TCP server is enabled through new_fluid_server() or fluidsynth -s, and it is locally reachable through malicious commands delivered to the FluidSynth shell on standard input. Applications that ", "references": ["https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-mqmq-w63q-cj94", "https://github.com/FluidSynth/fluidsynth/pull/1796", "https://github.com/FluidSynth/fluidsynth/commit/762a3bd39a431cd45abf3bbcce7286c87909d087"], "fixes": ["2.5.6+dfsg-1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2025-56225", "noindex": false, "published": "2026-01-09T00:00:00.000Z", "modified": "2026-01-12T16:24:43.733Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.00459, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-56225", "title": "CVE-2025-56225", "description": "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.", "references": ["https://github.com/FluidSynth/fluidsynth/issues/1602", "https://github.com/FluidSynth/fluidsynth/pull/1607", "https://nvd.nist.gov/vuln/detail/CVE-2025-56225"], "fixes": ["2.4.7+dfsg-1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2025-68617", "noindex": false, "published": "2025-12-23T22:41:28.861Z", "modified": "2025-12-24T14:53:35.537Z", "cvss": 7, "cvss_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "severity": "high", "epss": 0.00213, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-68617", "title": "Use after free in fluidsynth", "description": "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 not occur, when explicitly unloading a DLS file (before synth destruction), provided that at the time of unloading, no samples of the respective file a", "references": ["https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-ffw2-xvvp-39ch", "https://github.com/FluidSynth/fluidsynth/issues/1717", "https://github.com/FluidSynth/fluidsynth/issues/1728"], "fixes": ["2.5.2+dfsg-1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}, {"id": "CVE-2021-21417", "noindex": false, "published": "2021-04-29T17:10:15.000Z", "modified": "2024-08-03T18:09:16.083Z", "cvss": 7.2, "cvss_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N", "severity": "high", "epss": 0.00944, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-21417", "title": "Use after free in fluidsynth", "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.", "references": ["https://github.com/FluidSynth/fluidsynth/issues/808", "https://github.com/FluidSynth/fluidsynth/pull/810", "https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-6fcq-pxhc-jxc9"], "fixes": ["2.1.7-1.1"], "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}]}], "total": 10, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 1, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "fluidsynth", "path": "vulns/debian-14/fluidsynth", "ecosystem": "Debian:14"}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": [], "stats": {"recent": 1, "kev": 0}, "lastmod": "2026-10-15T19:46:31.057Z", "early_advisories": [], "license": "You may freely use the PatchFirst selection and our additions (priorities, early warnings, texts, summaries and aggregates) for your own purposes, including internal business use. Resale, commercial distribution and bulk mirroring of this selection or these additions require a written agreement with the operator. Whenever you use or publish the selection or our additions, credit PatchFirst (https://patchfirst.dev/vulns/) with this link to the regional feed page. Original records from open sources remain subject to their respective licenses and terms. These conditions do not restrict your rights to the original data, which you can obtain directly from those sources.", "terms_url": "https://patchfirst.dev/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://patchfirst.dev/vulns/"}, "source_changes": "Records are selected, normalized and combined by PatchFirst; summaries and translations may be added. News is credited with a link to the original source in each entry.", "sources": [{"id": "cve", "name": "CVE List / CVE.org", "url": "https://www.cve.org/", "license": "CVE Terms of Use", "terms_url": "https://www.cve.org/Legal/TermsOfUse", "notice": "Copyright © 1999–2021, The MITRE Corporation. LICENSE Submissions : For all materials you submit to the Common Vulnerabilities and Exposures (CVE™), you hereby grant to The MITRE Corporation (MITRE) and all CVE Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute such materials and derivative works. Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. DISCLAIMERS ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."}, {"id": "osv", "name": "OSV", "url": "https://osv.dev/", "terms_url": "https://google.github.io/osv.dev/data/", "terms": "Upstream licenses vary; see the source catalog."}, {"id": "kev", "name": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "license": "CC0-1.0", "terms_url": "https://github.com/cisagov/kev-data/blob/develop/LICENSE"}, {"id": "epss", "name": "FIRST EPSS", "url": "https://www.first.org/epss/", "terms_url": "https://www.first.org/epss/faq", "terms": "Free public scores; attribution requested (FIRST EPSS, scores generated by Empirical Security)."}, {"id": "github-advisory", "name": "GitHub Advisory Database", "url": "https://github.com/advisories", "license": "CC-BY-4.0", "terms_url": "https://github.com/github/advisory-database/blob/main/LICENSE.md"}, {"id": "exploitdb", "name": "Exploit-DB", "url": "https://www.exploit-db.com/", "license": "GPL-2.0", "terms_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/LICENSE.md"}, {"id": "metasploit", "name": "Metasploit", "url": "https://github.com/rapid7/metasploit-framework", "license": "BSD-3-Clause", "terms_url": "https://github.com/rapid7/metasploit-framework/blob/master/LICENSE", "notice": "Copyright (c) 2006-2026, Rapid7, Inc.\nLicense: BSD-3-clause\n Redistribution and use in source and binary forms, with or without modification,\n are permitted provided that the following conditions are met:\n .\n * Redistributions of source code must retain the above copyright notice,\n this list of conditions and the following disclaimer.\n .\n * Redistributions in binary form must reproduce the above copyright notice,\n this list of conditions and the following disclaimer in the documentation\n and/or other materials provided with the distribution.\n .\n * Neither the name of Rapid7, Inc. nor the names of its contributors\n may be used to endorse or promote products derived from this software\n without specific prior written permission.\n .\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n DISCLAIMED. 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IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE."}, {"id": "linux-kernel", "name": "Linux kernel releases", "url": "https://www.kernel.org/", "license": "CC-BY-SA-4.0", "terms_url": "https://www.kernel.org/legal.html", "notice": "Copyright (C) 1997-2014 by The Linux Kernel Organization, Inc."}]}