CVE-2026-33907
MEDIUMElla Core Panics during NAS Authentication Response/Failure with missing IEs
Title source: cnaDescription
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.
Scores
CVSS v3
6.5
EPSS
0.0006
EPSS Percentile
19.9%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (3)
ellanetworks/core
0 - 1.7.0Go
ellanetworks/core
< 1.7.0
ellanetworks/ella_core
< 1.7.0
Published
Mar 27, 2026
Tracked Since
Mar 29, 2026