CVE-2026-58264— FluidSynth 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 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 th
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一、 漏洞 CVE-2026-58264 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-based buffer overrun
来源: CVE Program / CVE List V5
Vulnerability 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 do not use the shell, command handler, or TCP server are not affected. This issue is fixed in version 2.5.6.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 | >= 1.1.2, < 2.5.6 | - |
|
二、漏洞 CVE-2026-58264 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-58264 补丁与修复 (2)
CVE-2026-58264 其他参考 (2)
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🔗 Release fluidsynth 2.5.6 · FluidSynth/fluidsynth · GitHub x_refsource_MISC
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同批安全公告 · FluidSynth · 2026-09-18 · 共 6 条
| CVE-2026-61721 | 8.0 HIGH | FluidSynth DLS采样堆缓冲区溢出漏洞 |
| CVE-2026-61714 | 7.8 HIGH | FluidSynth MIDI播放器堆缓冲区溢出漏洞 |
| 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-2026-58264
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