VulnerabilityAnalyzed

CVE-2026-33903

An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers.

MEDIUM 6.5EPSS 0.21%

Does this matter?

Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.21% probability · 11th percentile
CISA KEV: Not listed
Weakness: CWE-476
Affected: ellanetworks/ella core
Source: security-advisories@github.com

References

https://github.com/ellanetworks/core/commit/ec77a2ad4508f8488cb356fd45b2f1efd92587f8Patch
https://github.com/ellanetworks/core/releases/tag/v1.7.0Release Notes
https://github.com/ellanetworks/core/security/advisories/GHSA-f2f3-9cx3-wcmfVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.