CVE-2026-33907 MEDIUM

CVE-2026-33907: Ella Core Panics during NAS Authentication Response/Failure with missing IEs

Vendor Ellanetworks
Product core
Weakness CWE-476
Published March 27, 2026
Last update March 30, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing Authentication Response and Authentication Failure NAS message missing IEs. An attacker able to send crafted NAS messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. Version 1.7.0 added IE presence verification to NAS message handling.

Key dates

02Disclosure timeline

March 27, 2026 CVE published
March 30, 2026 Record updated