{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-71265", "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "state": "PUBLISHED", "assignerShortName": "TuranSec", "dateReserved": "2026-08-05T12:23:34.967Z", "datePublished": "2026-08-05T12:26:13.217Z", "dateUpdated": "2026-08-05T12:26:13.217Z"}, "containers": {"cna": {"title": "Domoticz MochadTCP Stack Buffer Overflow via MOCHAD_RFSEC strcpy()", "descriptions": [{"lang": "en", "value": "Domoticz's MochadTCP::MatchLine() handler for MOCHAD_RFSEC messages (hardware/MochadTCP.cpp) copies network-received data from the up-to-1028-byte m_mochadbuffer into a fixed 50-byte stack buffer tempRFSECbuf using strcpy() with no length check, across three separate code branches (DS10A/KR10A/MS10A device types). An attacker on the local network segment able to reach the Mochad TCP bridge (default port 1099, no authentication) can send a crafted packet that overflows tempRFSECbuf by up to several hundred bytes, corrupting the Domoticz worker thread's stack."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-121", "cweId": "CWE-121", "type": "CWE"}]}], "affected": [{"vendor": "domoticz", "product": "domoticz", "programFiles": ["hardware/MochadTCP.cpp"], "versions": [{"version": "0", "lessThanOrEqual": "*", "status": "affected", "versionType": "custom"}], "defaultStatus": "unaffected"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/domoticz/domoticz"}, {"url": "https://github.com/domoticz/domoticz/blob/master/hardware/MochadTCP.cpp"}], "credits": [{"lang": "en", "value": "Alibek Baxtiyorov", "type": "finder"}], "providerMetadata": {"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "shortName": "TuranSec", "dateUpdated": "2026-08-05T12:26:13.217Z"}}}}

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