CVE-2021-46242
CVE-2021-46242 is a high-severity vulnerability in Hdfgroup Hdf5 with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (63rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Hdfgroup Hdf5
- Published:
- Last modified:
Description
HDF5 v1.13.1-1 was discovered to contain a heap-use-after free via the component H5AC_unpin_entry.
Frequently asked questions
- What is CVE-2021-46242?
- HDF5 v1.13.1-1 was discovered to contain a heap-use-after free via the component H5AC_unpin_entry.
- How severe is CVE-2021-46242?
- CVE-2021-46242 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-46242 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-46242?
- CVE-2021-46242 affects Hdfgroup Hdf5. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-46242?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-46242 published?
- CVE-2021-46242 was published on 2022-01-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:hdfgroup:hdf5:1.13.1-1:*:*:*:*:*:*:*
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All CVEs affecting Hdfgroup Hdf5 →
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