CVE-2025-66719

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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:a:free5gc:nrf:1.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "6C9EFD5D-FC88-49B3-B73F-500B144CB4D2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Free5gc NRF 1.4.0. In the access-token generation logic of free5GC, the AccessTokenScopeCheck() function in file internal/sbi/processor/access_token.go bypasses all scope validation when the attacker uses a crafted targetNF value. This allows attackers to obtain an access token with any arbitrary scope."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en Free5gc NRF 1.4.0. En la l\u00f3gica de generaci\u00f3n de tokens de acceso de free5GC, la funci\u00f3n AccessTokenScopeCheck() en el archivo internal/sbi/processor/access_token.go omite toda la validaci\u00f3n de alcance cuando el atacante utiliza un valor targetNF manipulado. Esto permite a los atacantes obtener un token de acceso con cualquier alcance arbitrario."}], "id": "CVE-2025-66719", "lastModified": "2026-06-17T09:57:11.597", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-66719", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-23T19:23:17.121406Z", "version": "2.0.3"}}]}, "published": "2026-01-23T16:15:51.220", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking"], "url": "https://github.com/free5gc/free5gc/issues/736"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/free5gc/nrf/pull/73"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"created": "2026-01-26T11:54:37.416237+00:00", "updated": "2026-01-26T11:54:37.416264+00:00", "vendors": ["free5gc", "free5gc$PRODUCT$nrf"]}