CVE-2021-3933

Name: CVE-2021-3933
Creator: NVD / NIST
Published: 2022-03-25T19:15:09.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.85%

Last modified Jun 17, 2026

CVE-2021-3933 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits. This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with application stability or lead to other attack paths.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.

Description

An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits. This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with application stability or lead to other attack paths.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.85%

53.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openexr	Openexr	< 3.1.2
Fedoraproject	Fedora	36
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=2019783Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I2JSMJ7HLWFPYYV7IAQZD5ZUUUN7RWBN/
https://security.gentoo.org/glsa/202210-31Third Party Advisory
https://www.debian.org/security/2022/dsa-5299Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2019783Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I2JSMJ7HLWFPYYV7IAQZD5ZUUUN7RWBN/
https://security.gentoo.org/glsa/202210-31Third Party Advisory
https://www.debian.org/security/2022/dsa-5299Third Party Advisory

Timeline

Published: Mar 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3933?

How severe is CVE-2021-3933?

CVE-2021-3933 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3933?

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-2021-3933?

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

Scan your code now

Source: NVD / NIST