What’s Vulnerable › Vulnerabilities

CVE-2024-56319

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-18 · updated 2026-06-17
• Weakness: CWE-770

Description

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: before e3277eb — fixed in e3277eb

How to fix

Upgrade to a fixed version: Matter e3277eb. Check the vendor advisory for mitigations.

References

• https://github.com/project-chip/connectedhomeip/commit/e3277eb02ed8115de5887e8beca0e35007ba71f3
• https://github.com/project-chip/connectedhomeip/issues/36760
• https://github.com/project-chip/connectedhomeip/pull/36843
• https://github.com/project-chip/connectedhomeip/issues/36760

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