Resource Consumption Vulnerability in HDF5 Software by HDF Group
CVE-2025-6817

4.8MEDIUM

Key Information:

Vendor

HDF Group

Status
Hdf5
Vendor
CVE Published:
28 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6817?

A significant resource consumption issue has been identified in HDF5 version 1.14.6, originating from the H5C__load_entry function within the source file /src/H5Centry.c. This vulnerability allows an attacker to manipulate the system's resources, potentially leading to degraded performance or denial of service. The exploitation of this issue requires local access, making it critical for organizations using this version of HDF5 to assess their security posture and implement any necessary mitigation strategies. Public disclosure of the exploit has posed an immediate risk, necessitating swift action from users.

Affected Version(s)

HDF5 1.14.6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-6817 - Proof of Concept

References

https://vuldb.com/?id.314255
vdb-entrytechnical-description
https://vuldb.com/?ctiid.314255
signaturepermissions-required
https://vuldb.com/?submit.602294
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

JJLeo (VulDB User)
.
CVE-2025-6817 : Resource Consumption Vulnerability in HDF5 Software by HDF Group