by Kastro
Paper/Archive/CVE-2025-66719

CVE-2025-66719

mitre — An issue was discovered in Free5gc NRF 1.4.0.

EPSS 0.4%public exploitCVSS 9.1
critical.is priorityof 100
43
CVSS 9.1 (ADP)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 29.9.299 × 206.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: partial

References

refgithub.com/free5gc/free5gc/issues/736refgithub.com/free5gc/nrf/pull/73