{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-8656", "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e", "state": "PUBLISHED", "assignerShortName": "zdi", "dateReserved": "2025-08-06T01:05:15.460Z", "datePublished": "2025-08-06T01:19:06.412Z", "dateUpdated": "2025-08-06T13:49:28.201Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "99f1926a-a320-47d8-bbb5-42feb611262e", "shortName": "zdi", "dateUpdated": "2025-08-06T01:19:06.412Z"}, "title": "Kenwood DMX958XR Protection Mechanism Failure Software Downgrade Vulnerability", "descriptions": [{"lang": "en", "value": "Kenwood DMX958XR Protection Mechanism Failure Software Downgrade Vulnerability. This vulnerability allows physically present attackers to downgrade software on affected installations of Kenwood DMX958XR devices. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the libSystemLib library. The issue results from the lack of proper validation of version information before performing an update. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-26355."}], "affected": [{"vendor": "Kenwood", "product": "DMX958XR", "versions": [{"version": "1.0.0509.3100", "status": "affected"}], "defaultStatus": "unknown"}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-693", "description": "CWE-693: Protection Mechanism Failure", "type": "CWE"}]}], "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-804/", "name": "ZDI-25-804", "tags": ["x_research-advisory"]}], "dateAssigned": "2025-08-06T01:05:15.494Z", "datePublic": "2025-08-06T01:14:28.191Z", "source": {"lang": "en", "value": "Synacktiv"}, "metrics": [{"format": "CVSS", "cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 6.8, "baseSeverity": "MEDIUM"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-08-06T13:49:21.624872Z", "id": "CVE-2025-8656", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-08-06T13:49:28.201Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:jvckenwood:dmx958xr_firmware:1.0.0509.3100:*:*:*:*:*:*:*", "matchCriteriaId": "760C64B4-7C42-4198-A330-354B774E3A5A", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:jvckenwood:dmx958xr:-:*:*:*:*:*:*:*", "matchCriteriaId": "B7427DD7-005F-4DCB-BDF8-ACC4E05CD583", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Kenwood DMX958XR Protection Mechanism Failure Software Downgrade Vulnerability. This vulnerability allows physically present attackers to downgrade software on affected installations of Kenwood DMX958XR devices. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the libSystemLib library. The issue results from the lack of proper validation of version information before performing an update. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-26355."}, {"lang": "es", "value": "Vulnerabilidad de degradaci\u00f3n de software por fallo del mecanismo de protecci\u00f3n del Kenwood DMX958XR. Esta vulnerabilidad permite a atacantes con presencia f\u00edsica degradar el software en las instalaciones afectadas de los dispositivos Kenwood DMX958XR. No se requiere autenticaci\u00f3n para explotar esta vulnerabilidad. La falla espec\u00edfica se encuentra en la librer\u00eda libSystemLib. El problema se debe a la falta de una validaci\u00f3n adecuada de la informaci\u00f3n de la versi\u00f3n antes de realizar una actualizaci\u00f3n. Un atacante puede aprovechar esto, junto con otras vulnerabilidades, para ejecutar c\u00f3digo arbitrario en el contexto de root. Era ZDI-CAN-26355."}], "id": "CVE-2025-8656", "lastModified": "2025-08-07T16:49:34.430", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 0.9, "impactScore": 5.9, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}, "published": "2025-08-06T02:15:54.517", "references": [{"source": "zdi-disclosures@trendmicro.com", "tags": ["Third Party Advisory"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-25-804/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-693"}], "source": "zdi-disclosures@trendmicro.com", "type": "Primary"}]}

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