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CVE-2026-44475— Ella Core: UE Security Capability bypass on NGAP PathSwitchRequest

Quick assessment

Affected
ellanetworks core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 1.10.0之前版本存在安全特征问题漏洞，该漏洞源于未验证NGAP PathSwitchRequest消息中接收的UE安全能力与本地存储值是否一致，导致恶意gNB可通过发送特制的PathSwitchRequest覆盖任意UE的安全能力。

CVSS 6.1 · Medium EPSS 0.23% · P12

Affected Version Matrix 1

VendorProduct Version RangeStatus
ellanetworks core < 1.10.0 affected
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I. Basic Information for CVE-2026-44475

Vulnerability Information
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Vulnerability Title
Ella Core: UE Security Capability bypass on NGAP PathSwitchRequest
Source: CVE Program / CVE List V5
Vulnerability Description
Ella Core is a 5G core designed for private networks. Prior to 1.10.0, Ella Core does not verify the UE Security Capabilities received in NGAP PathSwitchRequest messages against its locally stored values. A malicious gNB can overwrite Ella Core's stored UE security capabilities for any UE with arbitrary values by sending a single crafted PathSwitchRequest. This vulnerability is fixed in 1.10.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当实现的标准安全检查
Source: CVE Program / CVE List V5
Vulnerability Title
Ella Core 安全特征问题漏洞
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 1.10.0之前版本存在安全特征问题漏洞，该漏洞源于未验证NGAP PathSwitchRequest消息中接收的UE安全能力与本地存储值是否一致，导致恶意gNB可通过发送特制的PathSwitchRequest覆盖任意UE的安全能力。
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

Vendor Product Affected Versions CPE Subscribe
ellanetworks core < 1.10.0 -

II. Public POCs for CVE-2026-44475

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III. Intelligence Information for CVE-2026-44475

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Vendor Advisories for CVE-2026-44475 (1)

Same Patch Batch · ellanetworks · 2026-05-27 · 3 CVEs total

CVE-2026-44473 7.1 HIGH Ella Core: UE Downlink Redirection via Forged PDUSessionResourceSetupResponse
CVE-2026-44474 3.7 LOW Ella Core: Handover failures during concurrent Security Mode Command

IV. Related Vulnerabilities

Same product: core
Same vendor: ellanetworks
Same weakness: CWE-358

V. Comments for CVE-2026-44475

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