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CVE-2025-6816— HDF5 H5Ofsinfo.c H5O__fsinfo_encode heap-based overflow

Quick assessment

Affected
n/a HDF5
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.

HDF5是HDF开源的一个库。 HDF5 1.14.6版本存在安全漏洞，该漏洞源于文件/src/H5Ofsinfo.c导致堆缓冲区溢出。

CVSS 3.3 · Low EPSS 0.21% · P11
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I. Basic Information for CVE-2025-6816

Vulnerability Information
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Vulnerability Title
HDF5 H5Ofsinfo.c H5O__fsinfo_encode heap-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
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 1.14.6版本存在安全漏洞，该漏洞源于文件/src/H5Ofsinfo.c导致堆缓冲区溢出。
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
- HDF5 1.14.6 -

II. Public POCs for CVE-2025-6816

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III. Intelligence Information for CVE-2025-6816

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Other References for CVE-2025-6816 (1)

Same Patch Batch · n/a · 2025-06-28 · 3 CVEs total

CVE-2025-6818 3.3 LOW HDF5 H5Ochunk.c H5O__chunk_protect heap-based overflow
CVE-2025-6817 3.3 LOW HDF5 H5Centry.c H5C__load_entry resource consumption

IV. Related Vulnerabilities

Same product: HDF5
Same vendor: n/a
Same weakness: CWE-122

V. Comments for CVE-2025-6816

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