HDF5 1.14.6 /src/H5Ofsinfo.c H5O__fsinfo_encode heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.1$0-$5k0.18

Summaryinfo

A vulnerability labeled as problematic has been found in HDF5 1.14.6. The affected element is the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. Executing a manipulation can lead to heap-based overflow. The identification of this vulnerability is CVE-2025-6816. The attack can only be executed locally. Furthermore, there is an exploit available. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

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 with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect availability.

The advisory is available at github.com. This vulnerability was named CVE-2025-6816. The exploitation appears to be easy. Local access is required to approach this attack. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19446). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/27/2025 Advisory disclosed
06/27/2025 +0 days VulDB entry created
06/30/2025 +3 days VulDB entry last update

Sourcesinfo

Advisory: 5571
Status: Not defined

CVE: CVE-2025-6816 (🔒)
GCVE (CVE): GCVE-0-2025-6816
GCVE (VulDB): GCVE-100-314254
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/27/2025 06:57 PM
Updated: 06/30/2025 06:21 PM
Changes: 06/27/2025 06:57 PM (56), 06/28/2025 11:07 AM (30), 06/28/2025 01:35 PM (1), 06/30/2025 06:21 PM (1)
Complete: 🔍
Submitter: JJLeo
Cache ID: 18:B24:40

Submitinfo

Accepted

  • Submit #602291: HDFGroup HDF5 hdf5 1.14.6 (commit 17c16b6) Heap-based Buffer Overflow (by JJLeo)

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