CVE-2026-33907

MEDIUM

6.5

Description

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.

CVE Details

CVSS v3.1 Score6.5

SeverityMEDIUM

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

Attack VectorADJACENT_NETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/27/2026

Last Modified3/30/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-476

References

https://github.com/ellanetworks/core/commit/52962660e3bd3e23c7e96b0da270ac1e0e705273(security-advisories@github.com)

https://github.com/ellanetworks/core/releases/tag/v1.7.0(security-advisories@github.com)

https://github.com/ellanetworks/core/security/advisories/GHSA-55q8-2gwx-29pc(security-advisories@github.com)

IOC Correlations

No correlations recorded

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