CVE-2018-16438
CVE-2018-16438 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-125.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Hdfgroup Hdf5
- Published:
- Last modified:
Description
An issue was discovered in the HDF HDF5 1.8.20 library. There is an out of bounds read in H5L_extern_query at H5Lexternal.c.
Frequently asked questions
- What is CVE-2018-16438?
- An issue was discovered in the HDF HDF5 1.8.20 library. There is an out of bounds read in H5L_extern_query at H5Lexternal.c.
- How severe is CVE-2018-16438?
- CVE-2018-16438 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-2018-16438 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-16438?
- CVE-2018-16438 affects Hdfgroup Hdf5. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-16438?
- 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-2018-16438 published?
- CVE-2018-16438 was published on 2018-09-04 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:hdfgroup:hdf5:1.8.20:*:*:*:*:*:*:*
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