CVE-2025-60686

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.614_b20230630:*:*:*:*:*:*:*", "matchCriteriaId": "BCA249C9-68D4-48FE-B0CA-77ECF53DDE3B", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:totolink:a720r:-:*:*:*:*:*:*:*", "matchCriteriaId": "A1DE5168-B787-462C-B024-2B8F73759034", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:totolink:lr1200gb_firmware:9.1.0u.6619_b20230130:*:*:*:*:*:*:*", "matchCriteriaId": "00F36DE9-D043-4C8B-9EF9-8DA669589E85", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:totolink:lr1200gb:-:*:*:*:*:*:*:*", "matchCriteriaId": "8442849E-5B06-41A1-8DA8-827FBD7A34E5", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6681_b20230703:*:*:*:*:*:*:*", "matchCriteriaId": "7F9DCAA5-1EC6-44A1-9606-B6FBF29DEC65", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:totolink:nr1800x:-:*:*:*:*:*:*:*", "matchCriteriaId": "B4D2D0E8-2678-4238-8229-83450ECA1153", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A local stack-based buffer overflow vulnerability exists in the infostat.cgi and cstecgi.cgi binaries of ToToLink routers (A720R V4.1.5cu.614_B20230630, LR1200GB V9.1.0u.6619_B20230130, and NR1800X V9.1.0u.6681_B20230703). Both programs parse the contents of /proc/net/arp using sscanf() with \"%s\" format specifiers into fixed-size stack buffers without length validation. Specifically, one function writes user-controlled data into a single-byte buffer, and the other into adjacent small arrays without bounds checking. An attacker who controls the contents of /proc/net/arp can trigger memory corruption, leading to denial of service or potential arbitrary code execution."}, {"lang": "es", "value": "Una vulnerabilidad local de desbordamiento de b\u00fafer basado en pila existe en los binarios infostat.cgi y cstecgi.cgi de los routers ToToLink (A720R V4.1.5cu.614_B20230630, LR1200GB V9.1.0u.6619_B20230130, y NR1800X V9.1.0u.6681_B20230703). Ambos programas analizan el contenido de /proc/net/arp usando sscanf() con especificadores de formato \u2019%s\u2019 en b\u00faferes de pila de tama\u00f1o fijo sin validaci\u00f3n de longitud. Espec\u00edficamente, una funci\u00f3n escribe datos controlados por el usuario en un b\u00fafer de un solo byte, y la otra en peque\u00f1os arreglos adyacentes sin comprobaci\u00f3n de l\u00edmites. Un atacante que controla el contenido de /proc/net/arp puede desencadenar corrupci\u00f3n de memoria, lo que lleva a denegaci\u00f3n de servicio o potencial ejecuci\u00f3n de c\u00f3digo arbitrario."}], "id": "CVE-2025-60686", "lastModified": "2026-11-05T14:10:00.273", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 2.5, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-60686", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-11-13T17:37:13.785364Z", "version": "2.0.3"}}]}, "published": "2025-11-13T16:15:52.590", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-A720R/CVE-2025-60686.md"}, {"source": "cve@mitre.org", "tags": ["Product"], "url": "https://www.totolink.net/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"created": "2025-11-14T09:28:22.758533+00:00", "updated": "2025-11-14T09:28:22.758562+00:00", "vendors": ["totolink", "totolink$PRODUCT$a720r", "totolink$PRODUCT$lr1200gb", "totolink$PRODUCT$nr1800x"]}