{"cve":"CVE-2026-33904","nvd":{"published":"2026-03-27T21:17:26.640","modified":"2026-10-26T22:10:00.163","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-833"],"references":["https://github.com/ellanetworks/core/commit/999f606c5cae261471d9e3f063d7ecd1bd754076","https://github.com/ellanetworks/core/releases/tag/v1.7.0","https://github.com/ellanetworks/core/security/advisories/GHSA-9h59-p45g-445h"],"products":["ellanetworks:ella_core"],"source":"nvd","synced_at":"2026-10-26T22:26:44.656832877+00:00"},"epss":{"cve":"CVE-2026-33904","score":0.00173,"percentile":0.06693,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-9h59-p45g-445h","url":"https://osv.dev/vulnerability/GHSA-9h59-p45g-445h","summary":"Ella Core has a Denial of Service via SCTP connection cleanup deadlock ","modified":"2026-04-02T21:26:07.838047470Z","packages":[{"ecosystem":"Go","name":"github.com/ellanetworks/core","purl":"pkg:golang/github.com/ellanetworks/core","ranges":["<1.7.0"],"fixed":["1.7.0"]}]},{"id":"GO-2026-4874","url":"https://osv.dev/vulnerability/GO-2026-4874","summary":"Ella Core has a Denial of Service via SCTP connection cleanup deadlock in github.com/ellanetworks/core","modified":"2026-04-02T21:20:03.568803Z","packages":[{"ecosystem":"Go","name":"github.com/ellanetworks/core","purl":"pkg:golang/github.com/ellanetworks/core","ranges":["<1.7.0"],"fixed":["1.7.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}