CVE-2025-66719

critical · 9.1

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.

9.1

CVSS

0.3%

EPSS (exploit prob.)

25th

EPSS percentile

2026-01-23

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-863

Affected products

Vendor	Product	Affected versions
free5gc	nrf	1.4.0

Check a specific version with /api/v1/cve/match.

References

https://github.com/free5gc/free5gc/issues/736
https://github.com/free5gc/nrf/pull/73

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-66719