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Vulnerability record · CVE-2021-23169 · published 8 June 2021

CVE-2021-23169: Openexr out-of-bounds write vulnerability

Openexr · Openexr

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

8.8 CVSS 3.1 High EPSS 2.3% · top 17.5% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score, v2 6.8
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=1947612 Issue TrackingThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KYNJSMVA6YJY5NMKDZ5SAI
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BXFLD4ZAXKAIWO6ZPBCQEED
https://security.gentoo.org/glsa/202210-31 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1947612 Issue TrackingThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KYNJSMVA6YJY5NMKDZ5SAI
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BXFLD4ZAXKAIWO6ZPBCQEED
https://security.gentoo.org/glsa/202210-31 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-23169), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.