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CVE-2026-111162— WildMIDI through 0.5.0 Heap Out-of-Bounds Read via _WM_ParseNewHmp

Quick assessment

Affected
Mindwerks WildMIDI
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WildMIDI 0.5.0 及之前版本中存在一个堆溢出读漏洞，位于 HMP 解析器 _WM_ParseNewHmp() 函数中。攻击者可以通过提供被精心构造的 .hmp 文件，利用下溢的块长度（chunk length）绕过缓冲区边界，从而读取超出缓冲区范围的数据。具体来说，攻击者可以构造一个块长度为 0 到 12 的 .hmp 文件，该值会因下溢而绕转为大约 4 GB 的值，导致应用程序崩溃或通过 WildMidi_GetInfo() 暴露堆内存中的敏感数据。

CVSS 6.1 · Medium

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
Mindwerks WildMIDI ≤ 0.5.0 affected
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I. Basic Information for CVE-2026-111162

Vulnerability Information
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Vulnerability Title
WildMIDI through 0.5.0 Heap Out-of-Bounds Read via _WM_ParseNewHmp
Source: CVE Program / CVE List V5
Vulnerability Description
WildMIDI through 0.5.0 contains a heap out-of-bounds read vulnerability in the HMP parser _WM_ParseNewHmp() that allows attackers to read beyond buffers via underflowed chunk lengths. Attackers can supply a crafted .hmp file with a chunk length of 0-12 that wraps to roughly 4 GB, crashing applications or exposing heap bytes through WildMidi_GetInfo().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mindwerks WildMIDI 0 ~ 0.5.0 -

II. Public POCs for CVE-2026-111162

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III. Intelligence Information for CVE-2026-111162

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Vendor Advisories for CVE-2026-111162 (1)

News Coverage for CVE-2026-111162 (1)

Vendor Pages for CVE-2026-111162 (1)

IV. Related Vulnerabilities

Same product: WildMIDI
Same vendor: Mindwerks
Same weakness: CWE-125

V. Comments for CVE-2026-111162

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