CVE-2026-33281
Medium
Description
Ella Core is a 5G core designed for private networks. Versions prior to 1.6.0 panic when processing NGAP messages with invalid PDU Session IDs outside of 1-15. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. Version 1.6.0 added PDU Session ID validations during NGAP message handling.
SeverityMedium
CVSS6.5
Exploit probability—
ProductEllanetworks Ella Core
PublishedMar 24, 2026
First seenMar 24, 2026
Weakness typeCWE-129CWE-129
How to fix
Update
- ellanetworks ella_core1.6.0 or later
- github.com/ellanetworks/core1.6.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ellanetworks ella_core | v < 1.6.0 | 1.6.0 |
| github.com/ellanetworks/coreGo | v < 1.6.0 | 1.6.0 |
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