Vulnerability · Published May 30, 2025 · Assigned by mitre
CVE-2025-44904
High 8.8
In plain English
A high-severity heap buffer overflow in the hdf5 package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 60.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
hdf5 v1.14.6 was discovered to contain a heap buffer overflow via the H5VM_memcpyvv function.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | hdf5 | no fix listed | DEBIAN-CVE-2025-44904 |
| Debian:13 | hdf5 | no fix listed | DEBIAN-CVE-2025-44904 |
| Debian:14 | hdf5 | no fix listed | DEBIAN-CVE-2025-44904 |
| Ubuntu:22.04:LTS | hdf5 | no fix listed | UBUNTU-CVE-2025-44904 |
| Ubuntu:24.04:LTS | hdf5 | no fix listed | UBUNTU-CVE-2025-44904 |
| Ubuntu:25.10 | hdf5 | no fix listed | UBUNTU-CVE-2025-44904 |
| Ubuntu:26.04:LTS | hdf5 | no fix listed | UBUNTU-CVE-2025-44904 |
| Ubuntu:26.10 | hdf5 | no fix listed | UBUNTU-CVE-2025-44904 |
Affected products (as reported)
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H