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I. Basic Information for CVE-2026-26200
Vulnerability Information

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Vulnerability Title
HDF5 Affected by H5T__conv_struct_opt Heap Buffer Overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
HDF5 is software for managing data. Prior to version 1.14.4-2, an attacker who can control an `h5` file parsed by HDF5 can trigger a write-based heap buffer overflow condition. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on the practical exploitability of the heap overflow against modern operating systems. Real-world exploitability of this issue in terms of remote-code execution is currently unknown. Version 1.14.4-2 fixes the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
HDF5 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HDF5是HDF开源的一个库。 HDF5 1.14.4-2之前版本存在安全漏洞,该漏洞源于处理特制h5文件时可能触发基于写入的堆缓冲区溢出,可能导致拒绝服务或远程代码执行。
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
VendorProductAffected VersionsCPESubscribe
HDFGrouphdf5 < 1.14.4-2 -
II. Public POCs for CVE-2026-26200
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III. Intelligence Information for CVE-2026-26200
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