CVSS v3
8.8
HIGH
EPSS Score
1.8 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2018-09-04
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.
Is CVE-2018-16438 actively exploited?
Active exploitation of CVE-2018-16438 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-16438?
CVE-2018-16438 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2018-16438 affecting your environment?
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