CVE-2025-66719

CRITICAL

9.1

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.

CVE Details

CVSS v3.1 Score9.1

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/23/2026

Last Modified2/11/2026

Sourcenvd

Honeypot Sightings0

Affected Products

free5gc:nrf

Weaknesses (CWE)

CWE-863

References

https://github.com/free5gc/free5gc/issues/736(cve@mitre.org)

https://github.com/free5gc/nrf/pull/73(cve@mitre.org)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.