What’s Vulnerable › Vulnerabilities
CVE-2026-17574: NULL Pointer Dereference in HDF5 via Invalid Variable-Length Datatype Type Tag
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-27 · updated 2026-10-24
- Weakness: CWE-476
Description
HDF5 contains a NULL pointer dereference vulnerability. Processing a crafted HDF5 file containing an attribute with an invalid variable-length datatype type field may cause the application to crash when the attribute is read.
Affected products
- HDF5: before 2.1.1 — fixed in 2.1.1
How to fix
Upgrade to a fixed version: HDF5 2.1.1. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-17574 or the next vulnerability affects your stack