Home/CVE/Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing Authentication Respo
CVE

CVE-2026-33907

Ella Core is a 5G core designed for private networks. Versions prior to 1.7.0 panic when processing Authentication Respo

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.

MEDIUM · CVSS 6.5 EPSS 0.00068
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

1
ellanetworks ella core< 1.7.0
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Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/ellanetworks/core MODERATE fixed in 1.7.0
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Mar 2026 · 09:17 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/ellanetworks/core/commit/52962660e3bd3e23c7e96b0da270ac1e0e705273Patch
https://github.com/ellanetworks/core/releases/tag/v1.7.0Release Notes
https://github.com/ellanetworks/core/security/advisories/GHSA-55q8-2gwx-29pcVendor Advisory
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