CVE-2026-44315
Last modified
CVE-2026-44315 is a critical-severity vulnerability rated 9.4/10 on the CVSS scale. free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the 3gpp-pfd-management API without inbound OAuth2/bearer-token authorization. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the 3gpp-pfd-management API without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can create, read, and delete PFD-management transaction state with a forged or arbitrary bearer token (e.g. Authorization: Bearer not-a-real-token). The route group is also reachable even when the running config's ServiceList does not declare it, so operators who think they disabled the service via config are still exposed. This vulnerability is fixed in 4.2.2.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Free5gc | Free5gc | < 4.2.2 |
References
- https://github.com/free5gc/free5gc/issues/858Exploit, Issue Tracking
- https://github.com/free5gc/free5gc/security/advisories/GHSA-5f62-53r8-qrqfExploit, Vendor Advisory
- https://github.com/free5gc/nef/pull/23Issue Tracking
- https://github.com/free5gc/free5gc/security/advisories/GHSA-5f62-53r8-qrqfExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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