CVE-2024-56319: Matter

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

In Matter (aka connectedhomeip or Project CHIP) through 1.4.0.0 before e3277eb, unlimited user label appends in a userlabel cluster can lead to a denial of service (resource exhaustion).

Affected products

• Matter Matter: before e3277eb (fixed in e3277eb)

Published 2024-12-18. Last modified 2026-06-17.