CVE-2024-3297: CSA-IoT Matter

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

An issue in the Certificate Authenticated Session Establishment (CASE) protocol for establishing secure sessions between two devices, as implemented in the Matter protocol versions before Matter 1.1 allows an attacker to replay manipulated CASE Sigma1 messages to make the device unresponsive until the device is power-cycled.

Affected products

• CSA-IoT Matter: affected versions not specified

Published 2024-07-24. Last modified 2026-06-17.