CVE-2026-86095— Unidata netcdf-c through 4.10.1 Out-of-bounds Write via Oversized HDF5 Attribute Name
Quick assessment
Affected
Unidata netcdf-c
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.
Unidata netcdf-c 库（版本至 4.10.1）中存在一个越界写入（Out-of-Bounds Write）漏洞，位于 函数中。该函数在将 HDF5 属性名称复制到固定的 256 字节缓冲区时，未进行长度校验。攻击者可以构造包含超长属性名称的 HDF5 文件，以覆盖目标缓冲区，从而引发内存损坏；当应用程序枚举属性名称时，可能会导致程序崩溃。
Possible ATT&CK Techniques 3 AI
T1025 · Data from Removable Media T1059 · Command and Scripting Interpreter T1500
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I. Basic Information for CVE-2026-86095
Vulnerability Information
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Vulnerability Title
Unidata netcdf-c through 4.10.1 Out-of-bounds Write via Oversized HDF5 Attribute Name
Source: CVE Program / CVE List V5
Vulnerability Description
Unidata netcdf-c through 4.10.1 contains an out-of-bounds write vulnerability in NC4_HDF5_inq_attname() that copies HDF5 attribute names into a fixed 256-byte buffer without length validation. Attackers can craft HDF5 files with oversized attribute names to overflow the destination buffer, causing memory corruption and crashes when applications enumerate attribute names.
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
跨界内存写
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-86095
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-86095 (1)
Proof of Concept for CVE-2026-86095 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-86095
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