Is CVE-2026-33907 actively exploited?

CVE-2026-33907 has no public evidence of in-the-wild exploitation as of 2026-04-20.

What is the CVSS score for CVE-2026-33907?

CVE-2026-33907 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2026-33907?

Patch guidance is available from ellanetworks security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-33907.

Which products are affected by CVE-2026-33907?

1 product: ellanetworks ella core.

CVE-2026-33907 - remediation guidance & executive summary

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: adjacent network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-476 · NULL Pointer Dereference

Metadata

Primary Vendor: ELLANETWORKS
Published: 3/27/2026
Last Modified: 4/20/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-33907

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary