{"id":"CVE-2025-56363","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-56363","generatedAt":"2026-10-28T09:42:17.760Z","title":"A null pointer dereference vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, affecting the ReadRevisionAttribute function used in multiple clusters (Channel, Account Login, TargetNavigator, etc.).","description":"A null pointer dereference vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, affecting the ReadRevisionAttribute function used in multiple clusters (Channel, Account Login, TargetNavigator, etc.). The function lacks proper validation of the delegate pointer before dereferencing. A remote unauthenticated attacker can exploit this issue by sending a crafted read request, causing the device to crash (denial of service). This issue has been confirmed in SDK version v1.4 (commit ab3d5ae).","published":"2026-07-14T23:17:27.000Z","lastModified":"2026-10-13T10:10:00.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["csa-iot/matter"],"epss":{"score":0.00369,"percentile":0.30591,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-05T19:00:09.000Z","detail":{"from":"7.5","score":"5.7","severity":"MEDIUM","fromSeverity":"HIGH"},"summary":"Now scored CVSS 5.7 MEDIUM (was 7.5)."}],"references":[{"url":"https://github.com/project-chip/connectedhomeip/","tags":["Product"],"source":"cve@mitre.org"},{"url":"https://github.com/project-chip/connectedhomeip/issues/39173","tags":["Exploit","Issue Tracking"],"source":"cve@mitre.org"},{"url":"https://github.com/project-chip/connectedhomeip/issues/39173","tags":["Exploit","Issue Tracking"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-56363","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}