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I. Basic Information for CVE-2026-33904
Vulnerability Information

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Vulnerability Title
Ella Core has a Denial of Service via SCTP connection cleanup deadlock
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
死锁
Source: NVD (National Vulnerability Database)
Vulnerability Title
Ella Core 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ella Core是Ella Networks开源的一个用于私有网络的5G核心网解决方案。 Ella Core 1.7.0之前版本存在安全漏洞,该漏洞源于AMF的SCTP通知处理程序存在死锁,可能导致攻击者使Ella Core挂起,造成所有用户的拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
ellanetworkscore < 1.7.0 -
II. Public POCs for CVE-2026-33904
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III. Intelligence Information for CVE-2026-33904
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IV. Related Vulnerabilities
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