CVE-2025-66719
Auth scope bypass enables tokens with arbitrary scopes.
Is CVE-2025-66719 being exploited?
Not confirmed. CVE-2025-66719 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2025-66719?
CVE-2025-66719 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-66719?
Yes. A fix has been recorded for CVE-2025-66719. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-66719 affect?
CVE-2025-66719 affects Free5GC NRF 1.4.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-66719?
Patch when released; revoke tokens and monitor for abuse.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can obtain access tokens with any scope, enabling unauthorized NRF API access and resource control.
Patch when possible