CVE-2020-11764

Name: CVE-2020-11764
Creator: NVD / NIST
Published: 2020-04-14T23:15:12.48+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.79%

Last modified Jun 17, 2026

CVE-2020-11764 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds write in copyIntoFrameBuffer in ImfMisc.cpp.. EPSS estimates a 1.79% chance of exploitation in the next 30 days.

Description

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds write in copyIntoFrameBuffer in ImfMisc.cpp.

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

1.79%

75.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Openexr	Openexr	< 2.4.1
Fedoraproject	Fedora	32
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.10
Canonical	Ubuntu Linux	20.04
Opensuse	Leap	15.1
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Apple	Icloud	< 7.20
Apple	Icloud	>= 10.0, < 11.3
Apple	Itunes	< 12.10.8
Apple	Ipados	< 13.6
Apple	Iphone Os	< 13.6
Apple	Mac Os X	>= 10.13.0, < 10.13.6
Apple	Mac Os X	>= 10.14.0, < 10.14.6
Apple	Mac Os X	>= 10.15, < 10.15.6
Apple	Mac Os X	10.13.6
Apple	Mac Os X	10.14.6
Apple	Tvos	< 13.4.8
Apple	Watchos	< 6.2.8

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00051.htmlMailing List, Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1987Exploit, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md#version-241-february-11-2020Release Notes, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.4.1Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00056.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4KFGDQG5PVYAU7TS5MZ7XCS6EMPVII3/
https://security.gentoo.org/glsa/202107-27Third Party Advisory
https://support.apple.com/kb/HT211288Third Party Advisory
https://support.apple.com/kb/HT211289Third Party Advisory
https://support.apple.com/kb/HT211290Third Party Advisory
https://support.apple.com/kb/HT211291Third Party Advisory
https://support.apple.com/kb/HT211293Third Party Advisory
https://support.apple.com/kb/HT211294Third Party Advisory
https://support.apple.com/kb/HT211295Third Party Advisory
https://usn.ubuntu.com/4339-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4755Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00051.htmlMailing List, Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1987Exploit, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md#version-241-february-11-2020Release Notes, Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.4.1Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00056.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4KFGDQG5PVYAU7TS5MZ7XCS6EMPVII3/
https://security.gentoo.org/glsa/202107-27Third Party Advisory
https://support.apple.com/kb/HT211288Third Party Advisory
https://support.apple.com/kb/HT211289Third Party Advisory
https://support.apple.com/kb/HT211290Third Party Advisory
https://support.apple.com/kb/HT211291Third Party Advisory
https://support.apple.com/kb/HT211293Third Party Advisory
https://support.apple.com/kb/HT211294Third Party Advisory
https://support.apple.com/kb/HT211295Third Party Advisory
https://usn.ubuntu.com/4339-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4755Third Party Advisory

Timeline

Published: Apr 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11764?

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds write in copyIntoFrameBuffer in ImfMisc.cpp.

How severe is CVE-2020-11764?

CVE-2020-11764 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.79% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11764?

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-2020-11764?

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

Scan your code now

Source: NVD / NIST