{
  "cveId": "CVE-2026-61714",
  "url": "https://patchblox.com/security/cve/CVE-2026-61714",
  "summary": "CVE-2026-61714 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-61714, released July 26, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "fluidsynth: FluidSynth is a software synthesizer based on the SoundFont 2 specifications",
  "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 2.5.6.",
  "published": "2026-09-18T13:17:00Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss": 0.00143,
  "epssPercentile": 0.03645,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "fluidsynth",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.4.4\u002Bdfsg-1\u002Bdeb13u3",
      "fix": "DEBIAN-CVE-2026-61714",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-61714",
      "released": "2026-07-26T13:52:50Z"
    },
    {
      "platform": "linux",
      "product": "fluidsynth",
      "release": "Debian 14",
      "fixedVersion": "2.5.6\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-61714",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-61714",
      "released": "2026-07-26T13:52:50Z"
    },
    {
      "platform": "linux",
      "product": "fluidsynth",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.2.5-1ubuntu0.1~esm1",
      "fix": "fluidsynth 2.2.5-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-fluidsynth-2.2.5-1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:48Z"
    },
    {
      "platform": "linux",
      "product": "fluidsynth",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.3.4-1ubuntu0.1~esm1",
      "fix": "fluidsynth 2.3.4-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-fluidsynth-2.3.4-1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:51Z"
    },
    {
      "platform": "linux",
      "product": "fluidsynth",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.4.8\u002Bdfsg-1ubuntu0.1~esm1",
      "fix": "fluidsynth 2.4.8\u002Bdfsg-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-fluidsynth-2.4.8-dfsg-1ubuntu0.1-esm1",
      "released": "2026-09-18T13:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libfluidsynth3",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.2.5-1ubuntu0.1~esm1",
      "fix": "libfluidsynth3 2.2.5-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libfluidsynth3-2.2.5-1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:48Z"
    },
    {
      "platform": "linux",
      "product": "libfluidsynth3",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.3.4-1ubuntu0.1~esm1",
      "fix": "libfluidsynth3 2.3.4-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libfluidsynth3-2.3.4-1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:51Z"
    },
    {
      "platform": "linux",
      "product": "libfluidsynth3",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "2.4.8\u002Bdfsg-1ubuntu0.1~esm1",
      "fix": "libfluidsynth3 2.4.8\u002Bdfsg-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libfluidsynth3-2.4.8-dfsg-1ubuntu0.1-esm1",
      "released": "2026-09-18T13:17:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}