Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-71261— dr_wav.h W64 CUE Chunk Metadata Parsing Integer Overflow Leading to Heap Buffer Overflow on 32-bit Builds

Quick assessment

Affected
mackron dr_libs
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

mackron dr_libs是mackron个人开发者的一个提供多种实用功能的C语言库。 mackron dr_libs存在数字错误漏洞，该漏洞源于W64 CUE块元数据解析中的整数溢出，可能导致在32位应用程序中解析不受信任的WAV元数据时发生堆缓冲区溢出。

CVSS 7.8 · High EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
mackron dr_libs ≤ * affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-71261

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
dr_wav.h W64 CUE Chunk Metadata Parsing Integer Overflow Leading to Heap Buffer Overflow on 32-bit Builds
Source: CVE Program / CVE List V5
Vulnerability Description
dr_libs dr_wav.h (all versions through current master) contains an integer overflow in W64 CUE chunk metadata parsing. In drwav__metadata_process_chunk, a stage-1 capacity estimate truncates the 64-bit W64 chunk sizeInBytes to size_t before dividing by DRWAV_CUE_POINT_BYTES; on 32-bit builds this truncation causes the pre-allocated extra metadata capacity to be computed incorrectly.
Source: 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
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
mackron dr_libs 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mackron dr_libs是mackron个人开发者的一个提供多种实用功能的C语言库。 mackron dr_libs存在数字错误漏洞，该漏洞源于W64 CUE块元数据解析中的整数溢出，可能导致在32位应用程序中解析不受信任的WAV元数据时发生堆缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mackron dr_libs 0 ~ * -

II. Public POCs for CVE-2026-71261

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9548 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-71261

请登录查看更多情报信息。

Other References for CVE-2026-71261 (1)

Other References for CVE-2026-71261 (1)

IV. Related Vulnerabilities

Same vendor: mackron
Same weakness: CWE-190