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CVE-2026-33907

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 - 22:15 nvd
MEDIUM 6.5

DescriptionNVD

Summary

Ella Core panics when processing Authentication Response and Authentication Failure NAS message missing IEs.

Impact

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.

Fix

Added IE presence verification to NAS message handling.

AnalysisAI

Ella Core crashes when processing NAS Authentication Response and Authentication Failure messages with missing Information Elements, enabling unauthenticated attackers on the adjacent network to trigger denial of service affecting all connected subscribers. The vulnerability stems from a null pointer dereference in message handling logic (CWE-476) and carries a CVSS 6.5 score reflecting high availability impact with low attack complexity. …

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RemediationAI

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Vendor StatusVendor

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CVE-2026-33907 vulnerability details – vuln.today
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