CVE-2025-2923: Heap-based Buffer Overflow in HDF5
A vulnerability, which was classified as problematic, has been found in HDF5 up to 1.14.6. Affected by this issue is the function H5F_addr_encode_len of the file src/H5Fint.c. The manipulation of the argument pp leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
AI Analysis
Technical Summary
This vulnerability in HDF5 up to version 1.14.6 involves a heap-based buffer overflow caused by improper manipulation of the argument pp in the H5F_addr_encode_len function. The issue allows an attacker with local access and low privileges to potentially cause memory corruption. The vulnerability does not require user interaction and has been publicly disclosed. No official patch or vendor advisory is provided in the input data.
Potential Impact
Successful exploitation can lead to heap-based buffer overflow, which may cause application crashes or potentially enable further local privilege escalation or code execution. However, the attack requires local access and low privileges, limiting remote exploitation. The CVSS score of 4.8 reflects a medium severity impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor communications for updates. Restrict local access to trusted users to reduce risk until a fix is available.
CVE-2025-2923: Heap-based Buffer Overflow in HDF5
Description
A vulnerability, which was classified as problematic, has been found in HDF5 up to 1.14.6. Affected by this issue is the function H5F_addr_encode_len of the file src/H5Fint.c. The manipulation of the argument pp leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
CVSS v4.0
Score 4.8medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in HDF5 up to version 1.14.6 involves a heap-based buffer overflow caused by improper manipulation of the argument pp in the H5F_addr_encode_len function. The issue allows an attacker with local access and low privileges to potentially cause memory corruption. The vulnerability does not require user interaction and has been publicly disclosed. No official patch or vendor advisory is provided in the input data.
Potential Impact
Successful exploitation can lead to heap-based buffer overflow, which may cause application crashes or potentially enable further local privilege escalation or code execution. However, the attack requires local access and low privileges, limiting remote exploitation. The CVSS score of 4.8 reflects a medium severity impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor vendor communications for updates. Restrict local access to trusted users to reduce risk until a fix is available.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- VulDB
- Date Reserved
- 2025-03-28T11:56:17.157Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 688204c6ad5a09ad00345646
Added to database: 07/24/2025, 10:02:46 UTC
Last enriched: 06/24/2026, 15:02:03 UTC
Last updated: 07/02/2026, 23:29:59 UTC
Views: 337
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