CVE-2021-23169: Fedoraproject Fedora

High severity, CVSS 8.8. EPSS: 2.3% chance of exploitation in the next 30 days.

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.

Affected products

• Fedoraproject Fedora: version 33 only; version 34 only
• Openexr Openexr: before 3.0.1 (fixed in 3.0.1)

Published 2021-06-08. Last modified 2026-06-17.