CVE-2026-33904

Ella Core has a Denial of Service via SCTP connection cleanup deadlock

State
Published
Severity
6.5 Medium
Published
Mar 27, 2026
Updated
Mar 31, 2026
Reserved
Mar 24, 2026

Read the record on cve.org

Description

Ella Core is a 5G core designed for private networks. Prior to version 1.7.0, a deadlock in the AMF's SCTP notification handler causes the entire AMF control plane to hang until the process is restarted. An attacker with access to the N2 interface can cause Ella Core to hang, resulting in a denial of service for all subscribers. Version 1.7.0 adds deferred Radio cleanup in serveConn SCTP server so that every connection exit path removes the radio. Remove the stale-entry scan from SCTP Notification handling.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HGitHub_M

Weaknesses

Affected Products

ProductVersions
coreellanetworks
  • < 1.7.0Affected

References

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