CVE-2025-8299

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{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "rtl81xx SDK", "vendor": "Realtek", "versions": [{"status": "affected", "version": "1030.38.712.2019"}]}], "source": "zdi-disclosures@trendmicro.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:realtek:wi-fi_usb_driver:*:*:*:*:*:windows:*:*", "matchCriteriaId": "64315E56-CCBD-46FE-AE2C-185A856157BA", "versionEndExcluding": "1030.52.0325.2025", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:realtek:rtl8811au:-:*:*:*:*:*:*:*", "matchCriteriaId": "884B566E-208D-47EE-AFCF-56D0D2C91B4F", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Realtek rtl81xx SDK Wi-Fi Driver MgntActSet_TEREDO_SET_RS_PACKET Heap-based Buffer Overflow Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Realtek rtl81xx SDK Wi-Fi driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the MgntActSet_TEREDO_SET_RS_PACKET function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-25857."}, {"lang": "es", "value": "Vulnerabilidad de desbordamiento de b\u00fafer basado en mont\u00edculo con escalada de privilegios local MgntActSet_TEREDO_SET_RS_PACKET del controlador Wi-Fi del SDK Realtek rtl81xx. Esta vulnerabilidad permite a los atacantes locales escalar privilegios en instalaciones afectadas del controlador Wi-Fi del SDK Realtek rtl81xx. Un atacante debe primero obtener la capacidad de ejecutar c\u00f3digo con privilegios bajos en el sistema objetivo para explotar esta vulnerabilidad.\n\nLa falla espec\u00edfica existe dentro de la funci\u00f3n MgntActSet_TEREDO_SET_RS_PACKET. El problema resulta de la falta de validaci\u00f3n adecuada de la longitud de los datos proporcionados por el usuario antes de copiarlos a un b\u00fafer basado en mont\u00edculo de longitud fija. Un atacante puede aprovechar esta vulnerabilidad para escalar privilegios y ejecutar c\u00f3digo arbitrario en el contexto de SYSTEM. Fue ZDI-CAN-25857."}], "id": "CVE-2025-8299", "lastModified": "2026-09-30T23:10:00.237", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-8299", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-09-03T14:33:14.211056Z", "version": "2.0.3"}}]}, "published": "2025-09-02T20:15:38.677", "references": [{"source": "zdi-disclosures@trendmicro.com", "tags": ["Third Party Advisory"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-25-882/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}

{}

{"created": "2025-09-03T20:27:09.758367+00:00", "updated": "2025-09-03T20:27:09.758417+00:00", "vendors": ["realtek", "realtek$PRODUCT$realtek_sdk"]}