HDF5 up to 1.14.6 src/H5Ocache.c H5O__cache_chk_serialize null pointer dereference

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in HDF5 up to 1.14.6. It has been classified as problematic. The affected element is the function H5O__cache_chk_serialize of the file src/H5Ocache.c. The manipulation leads to null pointer dereference. This vulnerability is documented as CVE-2025-2926. The attack needs to be performed locally. Additionally, an exploit exists. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Detailsinfo

A vulnerability was found in HDF5 up to 1.14.6 and classified as problematic. This issue affects the function H5O__cache_chk_serialize of the file src/H5Ocache.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability.

The weakness was released by Chen Lihai with Xidian University as 5384. The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-2926. The exploitation is known to be easy. An attack has to be approached locally. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 246954 (Linux Distros Unpatched Vulnerability : CVE-2025-2926), which helps to determine the existence of the flaw in a target environment.

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 databases at Tenable (246954) and EUVD (EUVD-2025-8654). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Database Software

Name

HDF5

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.0

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

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 246954
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-2926

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/28/2025 Advisory disclosed
03/28/2025 +0 days VulDB entry created
08/10/2025 +135 days VulDB entry last update

Sourcesinfo

Advisory: 5384
Researcher: Chen Lihai
Organization: Xidian University
Status: Not defined

CVE: CVE-2025-2926 (🔒)
GCVE (CVE): GCVE-0-2025-2926
GCVE (VulDB): GCVE-100-301901
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/28/2025 01:01 PM
Updated: 08/10/2025 05:32 AM
Changes: 03/28/2025 01:01 PM (56), 07/24/2025 11:44 AM (2), 07/24/2025 02:42 PM (1), 08/10/2025 05:32 AM (2)
Complete: 🔍
Committer: Anonymous User
Cache ID: 18:57E:40

Submitinfo

Accepted

Submit #521246: https://github.com/HDFGroup/hdf5 HDF5 1.14.6 NULL Pointer Dereference (by github.com)