Summaryinfo

A vulnerability was found in ellanetworks core up to 1.5.x. It has been classified as problematic. Affected by this issue is some unknown functionality of the component NGAP Handler. The manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2026-33282. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in ellanetworks core up to 1.5.x. This issue affects an unknown code block of the component NGAP Handler. 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. The summary by CVE is:

Ella Core is a 5G core designed for private networks. Versions prior to 1.6.0 panic when processing a malformed NGAP LocationReport message with `ue-presence-in-area-of-interest` event type and omitting the optional `UEPresenceInAreaOfInterestList` IE. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. Version 1.6.0 added IE presence verification to NGAP message handling.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-33282 since 03/18/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.6.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202603-4625). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• ellanetworks

Name

• core

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5

Website

• Product: https://github.com/ellanetworks/core/

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