CVE-2026-33903 MEDIUM

CVE-2026-33903: Ella Core panics when processing a crafted NGAP LocationReport message

Vendor Ellanetworks
Product core
Weakness CWE-476
Published March 27, 2026
Last update March 30, 2026

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 a specially crafted NGAP LocationReport message. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. Version 1.7.0 adds guards in NGAP Location Report handler.

Key dates

02Disclosure timeline

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