critical9.1
CVE-2025-66719
Free5gc NRF is vulnerable to scope validation bypass via maliciously crafted targetNF value
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/free5gc/nrf | < 1.4.1 | 1.4.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Free5gc | Nrf | Version 1.4.0 |