CVE-2026-33903 | ellanetworks core up to 1.6.x NGAP Location Report null pointer dereference (GHSA-f2f3-9cx3-wcmf)

VDB-354042 · CVE-2026-33903 · GHSA-F2F3-9CX3-WCMF ELLANETWORKS CORE UP TO 1.6.X NGAP LOCATION REPORT NULL POINTER DEREFERENCE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 1.73+ 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. Productinfo Vendor ellanetworks Name core Version 1.0 1.1 1.2 1.3 1.4 1.5 1.6 License open-source Website Product: https://github.com/ellanetworks/core/ 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 Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock 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 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock 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: 99:B97:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸