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CVE-2026-82551— Linux Foundation Magma NGSetup ngap_amf_handlers.c state issue

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.

在 Linux Foundation Magma 1.9.0 中发现了一个安全弱点。受影响的是组件 NGSetup Handler 中文件的一个未知函数。通过执行特定的操作，可能导致状态问题（state issue）。该攻击可远程执行，且漏洞的利用方式（exploit）已公开，可能被用于发起攻击。

CVSS 5.3 · Medium Updated Aug 31, 2026

Possible ATT&CK Techniques 1 AI

T1205 · Traffic Signaling

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Vulnerability Information

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Vulnerability Title

Linux Foundation Magma NGSetup ngap_amf_handlers.c state issue

Source: CVE Program / CVE List V5

Vulnerability Description

A weakness has been identified in Linux Foundation Magma 1.9.0. Affected is an unknown function of the file ngap_amf_handlers.c of the component NGSetup Handler. Executing a manipulation can lead to state issue. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

状态问题

Source: CVE Program / CVE List V5

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-2026-82551

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-82551

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Vendor Pages for CVE-2026-82551 (1)

🔗 [Bug] AMF accepts message without NGSetup is successful · Issue #16021 · magma/magma exploit issue-tracking

Other References for CVE-2026-82551 (3)

🔗 CVE-2026-82551 in Magma third-party-advisory
🔗 Submit #891577: Linux Foundation Projects Magma 5G v1.9.0 State Issue Read full article third-party-advisory
🔗 CVE-2026-82551 Linux Foundation Magma NGSetup ngap_amf_handlers.c state issue vdb-entry

https://www.cve.org/CVERecord?id=CVE-2026-82551

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-2026-82552	4.3 MEDIUM	Linux Foundation Magma gNB Termination ngap_amf.c denial of service

IV. Related Vulnerabilities

Same product: Magma

Same vendor: Linux Foundation

Same weakness: CWE-371

V. Comments for CVE-2026-82551

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CVE-2026-82551— Linux Foundation Magma NGSetup ngap_amf_handlers.c state issue

Quick assessment

Possible ATT&CK Techniques 1 AI

I. Basic Information for CVE-2026-82551

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-82551

III. Intelligence Information for CVE-2026-82551

Vendor Pages for CVE-2026-82551 (1)

Other References for CVE-2026-82551 (3)

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

IV. Related Vulnerabilities

V. Comments for CVE-2026-82551

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