CVE-2021-46244

Name: CVE-2021-46244
Creator: NVD / NIST
Published: 2022-01-21T21:15:08.97+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.96%

Last modified Jun 17, 2026

CVE-2021-46244 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A Divide By Zero vulnerability exists in HDF5 v1.13.1-1 vis the function H5T__complete_copy () at /hdf5/src/H5T.c. This vulnerability causes an aritmetic exception, leading to a Denial of Service (DoS).. EPSS estimates a 0.96% chance of exploitation in the next 30 days.

Description

A Divide By Zero vulnerability exists in HDF5 v1.13.1-1 vis the function H5T__complete_copy () at /hdf5/src/H5T.c. This vulnerability causes an aritmetic exception, leading to a Denial of Service (DoS).

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.96%

57.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-369

Affected Software

Vendor	Product	Versions
Hdfgroup	Hdf5	1.13.1-1

References

https://github.com/HDFGroup/hdf5/issues/1327Exploit, Issue Tracking, Third Party Advisory
https://github.com/HDFGroup/hdf5/issues/1327Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Jan 21, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46244?

How severe is CVE-2021-46244?

CVE-2021-46244 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46244?

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-2021-46244?

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

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Source: NVD / NIST