{"cve":"CVE-2025-66719","nvd":{"published":"2026-01-23T16:15:51.220","modified":"2026-06-17T09:57:11.597","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1},"cwes":["CWE-863"],"references":["https://github.com/free5gc/free5gc/issues/736","https://github.com/free5gc/nrf/pull/73"],"products":["free5gc:nrf"],"source":"nvd","synced_at":"2026-10-19T22:21:16.563232421+00:00"},"epss":{"cve":"CVE-2025-66719","score":0.00361,"percentile":0.2988,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-q7c8-gfjh-8v4p","url":"https://osv.dev/vulnerability/GHSA-q7c8-gfjh-8v4p","summary":"Free5gc NRF is vulnerable to scope validation bypass via maliciously crafted targetNF value","modified":"2026-07-07T20:41:17.748951611Z","packages":[{"ecosystem":"Go","name":"github.com/free5gc/nrf","purl":"pkg:golang/github.com/free5gc/nrf","ranges":["<1.4.1"],"fixed":["1.4.1"]}]},{"id":"GO-2026-5570","url":"https://osv.dev/vulnerability/GO-2026-5570","summary":"Free5gc NRF is vulnerable to scope validation bypass via maliciously crafted targetNF value in github.com/free5gc/nrf","modified":"2026-07-07T20:30:13.670955774Z","packages":[{"ecosystem":"Go","name":"github.com/free5gc/nrf","purl":"pkg:golang/github.com/free5gc/nrf","ranges":["<1.4.1"],"fixed":["1.4.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}