Medium 5.5Published Apr 14, 2020

CVE-2020-11761An issue was discovered in OpenEXR before 2.4.1.

Updated under an hour ago (Nov 2, 2026, 1:40 AM ET)

Does this affect you?

It affects openexr and 10 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stackFree account, 3 products Every CVE for openexr Exploited in the last 30 days

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds read during Huffman uncompression, as demonstrated by FastHufDecoder::refill in ImfFastHuf.cpp.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

openexr openexr openexr:openexr	before 2.4.1	NVD
fedoraproject fedora fedoraproject:fedora	32	NVD
canonical ubuntu_linux canonical:ubuntu_linux	16.04; 18.04; 19.10; 20.04	NVD
debian debian_linux debian:debian_linux	9.0; 10.0	NVD
apple icloud apple:icloud	before 7.20; from 10.0 before 11.3	NVD
apple itunes apple:itunes	before 12.10.8	NVD
apple ipados apple:ipados	before 13.6	NVD
apple iphone_os apple:iphone_os	before 13.6	NVD
apple mac_os_x apple:mac_os_x	before 10.15.6; from 10.13.0 before 10.13.6; from 10.14.0 before 10.14.6; 10.13.6; 10.13.6; 10.13.6; 10.13.6; 10.13.6; and 18 more ranges	NVD
apple tvos apple:tvos	before 13.4.8	NVD
1–10 of 11

References

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00051.html	mailing-list, third-party-advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1987	exploit, third-party-advisory
https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md#version-241-february-11-2020	release-notes, third-party-advisory
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.4.1	release-notes, third-party-advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00056.html	mailing-list, third-party-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4KFGDQG5PVYAU7TS5MZ7XCS6EMPVII3/
https://security.gentoo.org/glsa/202107-27	third-party-advisory
https://support.apple.com/kb/HT211288	third-party-advisory
https://support.apple.com/kb/HT211289	third-party-advisory
https://support.apple.com/kb/HT211290	third-party-advisory
1–10 of 16

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.