ellanetworks core up to 1.6.x NGAP Location Report null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in ellanetworks core up to 1.6.x. The impacted element is an unknown function of the component NGAP Location Report Handler. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2026-33903. The attacker must have access to the local network to execute the attack. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in ellanetworks core up to 1.6.x. Affected is an unknown part of the component NGAP Location Report Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-33903 since 03/24/2026. The exploitability is told to be easy. The attack needs to be done within the local network. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 1.7.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch ec77a2ad4508f8488cb356fd45b2f1efd92587f8 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: core 1.7.0
Patch: ec77a2ad4508f8488cb356fd45b2f1efd92587f8

Timelineinfo

03/24/2026 CVE reserved
03/27/2026 +3 days Advisory disclosed
03/27/2026 +0 days VulDB entry created
03/27/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-f2f3-9cx3-wcmf
Status: Confirmed

CVE: CVE-2026-33903 (🔒)
GCVE (CVE): GCVE-0-2026-33903
GCVE (VulDB): GCVE-100-354042

Entryinfo

Created: 03/27/2026 23:47
Changes: 03/27/2026 23:47 (68)
Complete: 🔍
Cache ID: 216:C6C:103

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