Heap-Based Buffer Overflow in HDF5 Type Conversion Logic by HDFGroup
CVE-2025-2309

4.8MEDIUM

Key Information:

Vendor

HDFGroup

Status
Hdf5
Vendor
CVE Published:
14 March 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-2309?

A vulnerability has been identified in HDF5 version 1.14.6, specifically within the Type Conversion Logic's function H5T__bit_copy. This issue allows for potential heap-based buffer overflow exploitation. Local access is required for an attacker to exploit this vulnerability. Despite its disclosure, there are doubts surrounding its true impact, as the vendor's communication has been minimal, rejecting inquiries without further detail. Security experts are advised to assess their version and apply necessary precautions.

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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-2025-2309 - Proof of Concept

References

https://vuldb.com/?id.299722
vdb-entrytechnical-description
https://vuldb.com/?ctiid.299722
signaturepermissions-required
https://vuldb.com/?submit.514532
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
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

Zhang Yaoliang (VulDB User)
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