CVE-2021-20299: Debian Linux

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

A flaw was found in OpenEXR's Multipart input file functionality. A crafted multi-part input file with no actual parts can trigger a NULL pointer dereference. The highest threat from this vulnerability is to system availability.

Affected products

• Debian Debian Linux: version 10.0 only
• Openexr Openexr: before 2.5.4 (fixed in 2.5.4)

Published 2022-03-16. Last modified 2026-06-17.