CVE-2024-0643: CIRES21 Live Encoder

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Unrestricted upload of dangerous file types in the C21 Live Encoder and Live Mosaic product, version 5.3. This vulnerability allows a remote attacker to upload different file extensions without any restrictions, resulting in a full system compromise.

Affected products

• CIRES21 Live Encoder: version 5.3 only

Published 2024-01-17. Last modified 2026-06-17.