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CVE-2025-5520— Open5GS AMF/MME emm_state_authentication assertion

Quick assessment

Affected
n/a Open5GS
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.

Open5GS是Open5GS开源的一个 5G Core 和 Epc 的 C 语言开源实现，即 Lte/Nr 网络的核心网络。 Open5GS 2.7.3及之前版本存在安全漏洞，该漏洞源于组件AMF/MME,可能会导致可达断言。

CVSS 5.3 · Medium EPSS 0.82% · P54

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-5520

Vulnerability Information
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Vulnerability Title
Open5GS AMF/MME emm_state_authentication assertion
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Open5GS up to 2.7.3. It has been classified as problematic. Affected is the function gmm_state_authentication/emm_state_authentication of the component AMF/MME. The manipulation leads to reachable assertion. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 9f5d133657850e6167231527514ee1364d37a884. It is recommended to apply a patch to fix this issue. This is a different issue than CVE-2025-1893.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
可达断言
Source: CVE Program / CVE List V5
Vulnerability Title
Open5GS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open5GS是Open5GS开源的一个 5G Core 和 Epc 的 C 语言开源实现，即 Lte/Nr 网络的核心网络。 Open5GS 2.7.3及之前版本存在安全漏洞，该漏洞源于组件AMF/MME,可能会导致可达断言。
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
- Open5GS 2.7.0 -

II. Public POCs for CVE-2025-5520

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III. Intelligence Information for CVE-2025-5520

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Other References for CVE-2025-5520 (1)

Same Patch Batch · n/a · 2025-06-03 · 16 CVEs total

CVE-2025-5501 5.3 MEDIUM Open5GS NGAP PathSwitchRequest Message ngap-handler.c ngap_handle_path_switch_request_tran
CVE-2025-46154 FoxCMS 安全漏洞
CVE-2025-45855 ERUPT 安全漏洞
CVE-2025-43923 Unicom Focal Point 安全漏洞
CVE-2025-43924 Unicom Focal Point 安全漏洞
CVE-2025-43925 Unicom Focal Point 安全漏洞
CVE-2025-44148 MailEnable 安全漏洞
CVE-2025-23103 SAMSUNG Exynos 2400和SAMSUNG Exynos 1480 安全漏洞
CVE-2025-32105 Sangoma IMG2020 HTTP server 安全漏洞
CVE-2025-32106 AudioCodes Audiocodes Mediapack MP-11x 安全漏洞
CVE-2025-23107 SAMSUNG Exynos 2400和SAMSUNG Exynos 1480 安全漏洞
CVE-2025-23102 SAMSUNG Exynos 安全漏洞
CVE-2025-23098 SAMSUNG Exynos 安全漏洞
CVE-2025-23100 SAMSUNG多款产品 安全漏洞
CVE-2025-23097 SAMSUNG Exynos 1380 安全漏洞

IV. Related Vulnerabilities

Same product: Open5GS
Same vendor: n/a
Same weakness: CWE-617

V. Comments for CVE-2025-5520

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