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CVE-2026-82552— Linux Foundation Magma gNB Termination ngap_amf.c denial of service

Quick assessment

Affected
Linux Foundation Magma
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.

Magma是Magma组织开源的一款面向电信行业的系统软件。 Magma 1.9.0版本存在资源管理错误漏洞，该漏洞源于gNB Termination Handler组件的tasks/ngap/ngap_amf.c文件操作不当，可能导致拒绝服务。

CVSS 4.3 · Medium EPSS 0.52% · P43

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Linux Foundation Magma 1.9.0 affected
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I. Basic Information for CVE-2026-82552

Vulnerability Information
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Vulnerability Title
Linux Foundation Magma gNB Termination ngap_amf.c denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Linux Foundation Magma 1.9.0. Affected by this vulnerability is an unknown functionality of the file tasks/ngap/ngap_amf.c of the component gNB Termination Handler. The manipulation leads to denial of service. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5
Vulnerability Title
Magma 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Magma是Magma组织开源的一款面向电信行业的系统软件。 Magma 1.9.0版本存在资源管理错误漏洞，该漏洞源于gNB Termination Handler组件的tasks/ngap/ngap_amf.c文件操作不当，可能导致拒绝服务。
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

Vendor Product Affected Versions CPE Subscribe
Linux Foundation Magma 1.9.0 cpe:2.3:o:linux_foundation:magma:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82552

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III. Intelligence Information for CVE-2026-82552

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Security Blog Posts for CVE-2026-82552 (1)

Vendor Pages for CVE-2026-82552 (1)

Other References for CVE-2026-82552 (2)

Same Patch Batch · Linux Foundation · 2026-08-30 · 6 CVEs total

CVE-2026-82549 8.3 HIGH Linux Foundation Magma SecurityModeComplete integrity check
CVE-2026-82547 6.5 MEDIUM Linux Foundation Magma Registration Complete Message amf_fsm.cpp improper authentication
CVE-2026-82548 5.3 MEDIUM Linux Foundation Magma InitialUEMessage information disclosure
CVE-2026-82550 5.3 MEDIUM Linux Foundation Magma NGSetupRequest input validation
CVE-2026-82551 5.3 MEDIUM Linux Foundation Magma NGSetup ngap_amf_handlers.c state issue

IV. Related Vulnerabilities

Same product: Magma
Same vendor: Linux Foundation
Same weakness: CWE-404

V. Comments for CVE-2026-82552

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