CVE-2025-56363 Project CHIP CVE debrief

Who should care

Organizations using the Matter SDK (connectedhomeip) before version 1.4.0 should prioritize patching this vulnerability to prevent potential denial-of-service attacks. Affected operators, platforms, and security teams should review and update affected systems and devices, and monitor for suspicious activity and potential exploitation attempts.

Technical summary

The vulnerability exists in the ReadRevisionAttribute function of the Matter SDK (connectedhomeip) before version 1.4.0, which lacks proper validation of the delegate pointer before dereferencing. This issue has been confirmed in SDK version v1.4 (commit ab3d5ae). A remote unauthenticated attacker can exploit this issue by sending a crafted read request, causing the device to crash (denial of service). Organizations using the Matter SDK (connectedhomeip) before version 1.4.0 should prioritize patching this vulnerability to prevent potential denial-of-service attacks. The ReadRevisionAttribute function is used in multiple clusters, including Channel, Account Login, and TargetNavigator. Affected operators, platforms, and security teams should review and update affected systems and devices, and monitor for suspicious activity and potential exploitation attempts.

Defensive priority

High

Recommended defensive actions

• Apply the patch or upgrade to Matter SDK version 1.4.0 or later
• Review and update affected systems and devices
• Monitor for suspicious activity and potential exploitation attempts
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-14T23:17:27.367Z and was last modified on 2026-07-17T03:07:54.360Z. The NVD entry is currently Analyzed. The vulnerability exists in the ReadRevisionAttribute function of the Matter SDK (connectedhomeip) before version 1.4.0. Evidence of exploitation is limited, and defenders should verify affected product deployments and review official advisories for further guidance.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.