CVE-2026-26200
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
HDF5 is software for managing data. Prior to version 1.14.4-2, an attacker who can control an h5 file parsed by HDF5 can trigger a write-based heap buffer overflow condition. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on the practical exploitability of the heap overflow against modern operating systems. Real-world exploitability of this issue in terms of remote-code execution is currently unknown. Version 1.14.4-2 fixes the issue.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| HDFGroup | hdf5 | < 1.14.4-2 | affected |
Weaknesses
- CWE-122: CWE-122: Heap-based Buffer Overflow
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
hdf5: HDF5: Denial of Service due to heap buffer overflow when parsing a crafted h5 file
Additional References
- https://access.redhat.com/security/cve/CVE-2026-26200
- https://bugzilla.redhat.com/show_bug.cgi?id=2441088
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26200.json
References
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