CVE-2025-65562

{"id": "CVE-2025-65562", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-65562", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-19T17:31:28.593788Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}]}], "published": "2025-12-18T19:16:33.747", "references": [{"url": "https://github.com/free5gc/free5gc/issues/731", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/free5gc/free5gc/issues/731", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-129"}]}], "descriptions": [{"lang": "en", "value": "The free5GC UPF suffers from a lack of bounds checking on the SEID when processing PFCP Session Deletion Requests. An unauthenticated remote attacker can send a request with a very large SEID (e.g., 0xFFFFFFFFFFFFFFFF) that causes an integer conversion/underflow in LocalNode.DeleteSess() / LocalNode.Sess() when a uint64 SEID is converted to int and used in index arithmetic. This leads to a negative index into n.sess and a Go runtime panic, resulting in a denial of service (UPF crash). The issue has been reproduced on free5GC v4.1.0 with crashes observed in the session lookup/deletion path in internal/pfcp/node.go; other versions may also be affected. No authentication is required."}, {"lang": "es", "value": "El UPF de free5GC sufre de una falta de comprobaci\u00f3n de l\u00edmites en el SEID al procesar Solicitudes de Eliminaci\u00f3n de Sesi\u00f3n PFCP. Un atacante remoto no autenticado puede enviar una solicitud con un SEID muy grande (p. ej., 0xFFFFFFFFFFFFFFFF) que causa una conversi\u00f3n/subdesbordamiento de enteros en LocalNode.DeleteSess() / LocalNode.Sess() cuando un SEID uint64 se convierte a int y se usa en aritm\u00e9tica de \u00edndices. Esto lleva a un \u00edndice negativo en n.sess y un p\u00e1nico en tiempo de ejecuci\u00f3n de Go, lo que resulta en una denegaci\u00f3n de servicio (ca\u00edda del UPF). El problema se ha reproducido en free5GC v4.1.0 con ca\u00eddas observadas en la ruta de b\u00fasqueda/eliminaci\u00f3n de sesi\u00f3n en internal/pfcp/node.go; otras versiones tambi\u00e9n pueden verse afectadas. No se requiere autenticaci\u00f3n."}], "lastModified": "2026-10-13T11:10:00.203", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:free5gc:free5gc:4.1.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4087E419-65F0-4AAD-A2F6-C24EEDC27B3B"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}