CVE-2026-33907: medium-severity vulnerability in ellanetworks core
Ella Core Panics during NAS Authentication Response/Failure with missing IEs
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.2%
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:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
ellanetworks · coreRelated CVEs — ellanetworks core
In the same product, most dangerous first.
CVE-2026-33282HIGHElla Core panics on malformed NGAP Location ReportEPSS 0.4%CVE-2026-33281MEDIUMElla Core panics on invalid PDU Session IDs in NGAP messagesEPSS 0.4%CVE-2026-33906HIGHElla Core has Privilege Escalation via Database Restore by NetworkManager roleEPSS 0.4%CVE-2026-33283MEDIUMElla Core panics on malformed ULNASTransport Message without a Request TypeEPSS 0.4%CVE-2026-34761MEDIUMElla Core Panics Upon NGAP handover failureEPSS 0.3%CVE-2026-32319HIGHElla Core: Unauthenticated AMF DoS via malformed InitialUEMessage with undersized integrity-protected NAS payloadEPSS 0.3%