CVE-2026-33903 PUBLISHED

Ella Core panics when processing a crafted NGAP LocationReport message

Assigner: GitHub_M
Reserved: 24.03.2026 Published: 27.03.2026 Updated: 27.03.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 6.5

Attack Vector	Adjacent Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	ellanetworks
Product	core
Versions	Version < 1.7.0 is affected

References

https://github.com/ellanetworks/core/security/advisories/GHSA-f2f3-9cx3-wcmf
https://github.com/ellanetworks/core/commit/ec77a2ad4508f8488cb356fd45b2f1efd92587f8
https://github.com/ellanetworks/core/releases/tag/v1.7.0

Problem Types

CWE-476: NULL Pointer Dereference CWE