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CVE-2026-33903

MEDIUM
NULL Pointer Dereference (CWE-476)
2026-03-26 https://github.com/ellanetworks/core
Denial Of Service Null Pointer Dereference
6.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 26, 2026 - 22:16 vuln.today
Patch released
Mar 26, 2026 - 22:16 nvd
Patch available
CVE Published
Mar 26, 2026 - 22:11 nvd
MEDIUM 6.5

DescriptionNVD

Summary

Ella Core panics when processing a specially crafted NGAP LocationReport message.

Impact

An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers.

Fix

Add guards in NGAP Location Report handler.

AnalysisAI

Ella Core suffers a null pointer dereference vulnerability in its NGAP LocationReport message handler that causes the process to panic and crash, enabling unauthenticated network-adjacent attackers to trigger denial of service affecting all connected mobile subscribers. The vulnerability (CVE-2026-33903, CVSS 6.5) stems from missing input validation guards and has a vendor-released patch available in version 1.7.0; no public exploit code or active exploitation has been identified at time of analysis.

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RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

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Vendor StatusVendor

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CVE-2026-33903 vulnerability details – vuln.today
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