CVE-2026-40247

Katalog CVE

CVSS 7.5 · High EPSS 0,51%

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 reading 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 data is returned alongside the 404 response. An unauthenticated attacker with access to the 5G Service Based Interface can read arbitrary Traffic Influence Subscriptions, including SUPIs/IMSIs, DNNs, S-NSSAIs, and callback URIs, 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:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-285: Improper Authorization
CWE-636: Not Failing Securely ('Failing Open')

EPSS (30 hari)

0,51% peluang dieksploitasi; lebih tinggi dari 41,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/free5gc/free5gc/security/advisories/GHSA-x5r2-r74c-3w28 exploit · mitigasi · advisory pihak ketiga