Ella Core panics when processing a crafted NGAP LocationReport message

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Summary

CVECVE-2026-33903
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-27 21:17:26 UTC
Updated2026-03-30 13:26:07 UTC
DescriptionElla 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

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

EPSS: 0.000160000 probability, percentile 0.037210000 (date 2026-04-01)

Problem Types: CWE-476 | CWE-476 CWE-476: NULL Pointer Dereference

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ellanetworks Core affected < 1.7.0 Not specified

References

ReferenceSourceLinkTags
github.com/ellanetworks/core/releases/tag/v1.7.0 [email protected] github.com
github.com/ellanetworks/core/commit/ec77a2ad4508f8488cb356fd45b2f1efd925... [email protected] github.com
github.com/ellanetworks/core/security/advisories/GHSA-f2f3-9cx3-wcmf [email protected] github.com
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