csirt@kutim:~/threat-intel/cve/CVE-2026-40248

Katalog CVE

CVSS 7.5 · High EPSS 0,50%

Kerentanan Improper Authorization pada free5gc. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the handler for creating or updating Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404 response when validation fails. Execution continues and the subscription is created or overwritten regardless. An unauthenticated attacker with access to the 5G Service Based Interface can create or overwrite arbitrary Traffic Influence Subscriptions, including injecting attacker-controlled notificationUri values and arbitrary SUPIs, by supplying any value for the influenceId path segment. A patched version was not available at the time of publication.

Rincian

Terbit di NVD
16 April 2026
Terakhir diubah
17 Juni 2026
Status NVD
Analyzed
CVSS 3.1
7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-285: Improper Authorization
CWE-636: Not Failing Securely ('Failing Open')
EPSS (30 hari)
0,50% peluang dieksploitasi; lebih tinggi dari 41,3% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
free5gc free5gc Semua versi hingga 4.2.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.