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HIGH

CVE-2020-18232

CVSS v3

8.8

HIGH

EPSS Score

1.1 %

exploit probability, as of 2026-10-20

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2020-18232 Red Hat Product Security1 known affected

    hdf5: Buffer Overflow in function H5S_close in H5S.c

    hdf5 as a component of Red Hat OpenStack Platform 16.1

Full record on NVD

Description

Buffer Overflow vulnerability in function H5S_close in H5S.c in HDF5 1.10.4 allows remote attackers to run arbitrary code via creation of crafted file.

Technical details

Published
2023-08-22

Frequently asked questions

What is CVE-2020-18232?

Buffer Overflow vulnerability in function H5S_close in H5S.c in HDF5 1.10.4 allows remote attackers to run arbitrary code via creation of crafted file.

Is CVE-2020-18232 actively exploited?

Active exploitation of CVE-2020-18232 has not been confirmed. Its EPSS score was 1.1% on 2026-10-20, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-18232?

CVE-2020-18232 has a CVSS v3 base score of 8.8 (HIGH severity).

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