CVE-2021-23215: Debian Linux

Medium severity, CVSS 5.5. EPSS: 1.1% chance of exploitation in the next 30 days.

An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 33 only
• Openexr Openexr: before 3.0.1 (fixed in 3.0.1)

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