CVE-2026-61714— FluidSynth MIDI播放器堆缓冲区溢出漏洞
一分钟漏洞结论
影响对象
FluidSynth fluidsynth
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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 track
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一、 漏洞 CVE-2026-61714 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
FluidSynth: Heap Buffer Overflow in MIDI Player
来源: CVE Program / CVE List V5
Vulnerability 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.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| FluidSynth | fluidsynth | >= 2.2.4, < 2.5.6 | - |
|
二、漏洞 CVE-2026-61714 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-61714 补丁与修复 (1)
CVE-2026-61714 其他参考 (2)
-
🔗 Release fluidsynth 2.5.6 · FluidSynth/fluidsynth · GitHub x_refsource_MISC
-
Heap Buffer Overflow in MIDI Player · Advisory · FluidSynth/fluidsynth · GitHub x_refsource_CONFIRM
同批安全公告 · FluidSynth · 2026-09-18 · 共 6 条
| CVE-2026-58264 | 9.8 CRITICAL | FluidSynth 堆缓冲区溢出漏洞 |
| CVE-2026-61721 | 8.0 HIGH | FluidSynth DLS采样堆缓冲区溢出漏洞 |
| CVE-2026-61723 | 6.8 MEDIUM | FluidSynth DLS ptbl 块整数溢出漏洞 |
| CVE-2026-61722 | 6.8 MEDIUM | FluidSynth DLS Articulation Chunk整数溢出 |
| CVE-2026-61720 | 6.2 MEDIUM | FluidSynth SF2 DMOD块无符号下溢漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-61714
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