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CVE-2026-82587— Open5GS AMF namf-handler.c amf_namf_comm_decode_ue_mm_context_list memory corruption

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.

在 Open5GS 版本 2.7.7 及之前版本中发现了一个漏洞。该漏洞位于 AMF 组件中 文件的 函数。 具体而言，对参数 的处理导致了内存损坏（memory corruption）。攻击者可以远程发起该攻击。该漏洞已被公开披露，并可能被利用（exploit 已公开）。 升级到版本 2.8.0 可以解决此问题。相关补丁编号为：abf8a836564b966b5141110fc25ed413c4f17522。建议升级受影响的组件以修复该漏洞。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 9

VendorProduct Version RangeStatus
n/a Open5GS 2.7.0 affected
2.7.1 affected
2.7.2 affected
2.7.3 affected
2.7.4 affected
2.7.5 affected
2.7.6 affected
2.7.7 affected
… +1 more rows
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I. Basic Information for CVE-2026-82587

Vulnerability Information
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Vulnerability Title
Open5GS AMF namf-handler.c amf_namf_comm_decode_ue_mm_context_list memory corruption
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function amf_namf_comm_decode_ue_mm_context_list of the file src/amf/namf-handler.c of the component AMF. This manipulation of the argument ueContext.mmContextList[*].allowedNssai causes memory corruption. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.8.0 is able to resolve this issue. Patch name: abf8a836564b966b5141110fc25ed413c4f17522. It is recommended to upgrade the affected component.
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
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- Open5GS 2.7.0 cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82587

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III. Intelligence Information for CVE-2026-82587

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News Coverage for CVE-2026-82587 (1)

Other References for CVE-2026-82587 (5)

IV. Related Vulnerabilities

Same product: Open5GS
Same vendor: n/a
Same weakness: CWE-119

V. Comments for CVE-2026-82587

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