CVE-2026-33907 | ellanetworks core up to 1.6.x null pointer dereference (GHSA-55q8-2gwx-29pc)

VDB-354038 · CVE-2026-33907 · GHSA-55Q8-2GWX-29PC ELLANETWORKS CORE UP TO 1.6.X NULL POINTER DEREFERENCE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 1.93 Summaryinfo A vulnerability was found in ellanetworks core up to 1.6.x. It has been declared as problematic. This vulnerability affects unknown code. Such manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2026-33907. The attack must be carried out from within the local network. There is no available exploit. It is recommended to upgrade the affected component. Detailsinfo A vulnerability was found in ellanetworks core up to 1.6.x and classified as problematic. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes: 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. The advisory is available at github.com. This vulnerability is handled as CVE-2026-33907 since 03/24/2026. The exploitation is known to be easy. Access to the local network is required for this attack to succeed. No form of authentication is required for exploitation. 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 52962660e3bd3e23c7e96b0da270ac1e0e705273 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: 52962660e3bd3e23c7e96b0da270ac1e0e705273 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-55q8-2gwx-29pc Status: Confirmed CVE: CVE-2026-33907 (🔒) GCVE (CVE): GCVE-0-2026-33907 GCVE (VulDB): GCVE-100-354038 Entryinfo Created: 03/27/2026 23:46 Changes: 03/27/2026 23:46 (67) Complete: 🔍 Cache ID: 99:82C:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸