PatchTheCVEhdf5 vulnerabilities and fixes
Recent CVEs affecting hdf5, with upgrade or downgrade steps. 3 tracked.
hdf5 has 3 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 3. Most recent: 2026-07-27. Highest priority: CVE-2026-17573 (score 25/100).
- CVE-2026-17573 MEDIUM 5.5 UPGRADE A double free vulnerability was discovered in the HDF5 library
- CVE-2026-17572 MEDIUM 5.5 UPGRADE Heap-based buffer overflow in the SOHM list-index deserialization code in HDF5 through 2.1.1 on all platforms
- CVE-2026-17574 MEDIUM 5.5 UPGRADE HDF5 contains a NULL pointer dereference vulnerability
FAQ
How do I fix hdf5 vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is hdf5 being exploited right now?
None of the tracked hdf5 CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which hdf5 CVE should I patch first?
CVE-2026-17573 currently ranks highest (25/100): A double free vulnerability was discovered in the HDF5 library.