CVE-2026-33903

MEDIUM
2026-03-26 https://github.com/ellanetworks/core
6.5
CVSS 3.1
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CVSS Vector

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

Tags

Denial Of Service Null Pointer Dereference

Description

## 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.

Analysis

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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Remediation

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

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Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

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CVE-2026-33903 vulnerability details – vuln.today
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