CVE-2025-2923
HDF5 H5Fint.c H5F_addr_encode_len heap-based overflow
- State
- Published
- Severity
- 4.8 Medium
- Published
- Mar 28, 2025
- Updated
- Jun 23, 2026
- Reserved
- Mar 28, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.3 Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
HDF5n/a |
|
References
- VDB-301898 | HDF5 H5Fint.c H5F_addr_encode_len heap-based overflowvdb-entrytechnical-description
- VDB-301898 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #521151 | https://github.com/HDFGroup/hdf5 HDF5 1.14.6 Heap-based Buffer Overflowthird-party-advisory
- https://github.com/HDFGroup/hdf5/issues/5381exploitissue-tracking
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