CVE-2026-42081

Katalog CVE

CVSS 7.1 · High EPSS 0,28%

Kerentanan Improperly Implemented Security Check for Standard pada free5gc. Skor CVSS 3.1 7.1 (High) menurut NVD.

Deskripsi (NVD)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the AMF in Free5GC does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values, as mandated by 3GPP TS 33.501 §6.7.3.1. A malicious gNB can overwrite the AMF's stored UE security capabilities with arbitrary values, which are then propagated in PathSwitchRequest Acknowledge messages and subsequent Handover Request messages. This leads to persistent handover denial-of-service for affected UEs. This vulnerability is fixed in 4.2.2.

Rincian

Terbit di NVD

27 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.1 (High), sumber NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-358: Improperly Implemented Security Check for Standard

EPSS (30 hari)

0,28% peluang dieksploitasi; lebih tinggi dari 19,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/free5gc/free5gc/security/advisories/GHSA-77x9-rf64-92gv exploit · advisory vendor