CVE-2026-44323

Katalog CVE

CVSS 6.5 · Medium EPSS 0,58%

Kerentanan NULL Pointer Dereference pada free5gc. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's UDR nudr-dr DELETE /subscription-data/{ueId}/{servingPlmnId}/ee-subscriptions/{subsId}/amf-subscriptions handler contains a nil-pointer dereference reachable from a single authenticated request, after one preparatory authenticated EE-subscription create. The handler checks _, ok = UESubsData.EeSubscriptionCollection[subsId] and sets a 404 problem-details on the miss path, but then continues to UESubsData.EeSubscriptionCollection[subsId].AmfSubscriptionInfos -- dereferencing the same missing entry instead of returning. Gin recovery converts the panic into HTTP 500, but the endpoint remains repeatedly panicable. 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

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

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,58% peluang dieksploitasi; lebih tinggi dari 46,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/free5gc/free5gc/security/advisories/GHSA-4rqf-grm6-vf75 exploit · advisory vendor
• https://github.com/free5gc/udr/commit/8a1d3c63be99d378806d771f086ff32f1867da99 patch
• https://github.com/free5gc/udr/pull/60 issue tracking · patch
• https://github.com/free5gc/free5gc/issues/919 exploit · issue tracking