CVE-2020-18232

Name: CVE-2020-18232
Creator: NVD / NIST
Published: 2023-08-22T19:15:54.903+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2020-18232 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.88%

54.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Hdfgroup	Hdf5	1.10.4

References

https://github.com/winson2004aa/PAAFS/tree/master/vul2Exploit, Third Party Advisory
https://github.com/winson2004aa/PAAFS/tree/master/vul2Exploit, Third Party Advisory

Timeline

Published: Aug 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

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.

How severe is CVE-2020-18232?

CVE-2020-18232 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2020-18232?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-18232?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST