CVE-2026-33064

Published: Mar 20, 2026 Last Modified: Mar 20, 2026

ExploitDB:

Other exploit source:

Google Dorks:

HIGH 8,7

Source: [email protected]

Attack Vector: network

Attack Complexity: low

Privileges Required: none

User Interaction: none

Confidentiality: N/A

Integrity: N/A

Availability: N/A

Description

AI Translation Available

Free5GC is an open-source Linux Foundation project for 5th generation (5G) mobile core networks. Versions prior to 1.4.2 are vulnerable to procedure panic caused by Nil Pointer Dereference in the /sdm-subscriptions endpoint. A remote attacker can cause the UDM service to panic and crash by sending a crafted POST request to the /sdm-subscriptions endpoint with a malformed URL path containing path traversal sequences (../) and a large JSON payload. The DataChangeNotificationProcedure function in notifier.go attempts to access a nil pointer without proper validation, causing a complete service crash with 'runtime error: invalid memory address or nil pointer dereference'. Exploitation would result in UDM functionality disruption until recovery by restart. This issue has been fixed in version 1.4.2.