CVE-2026-5661— Free5GC NGSetupRequest denial of service
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I. Basic Information for CVE-2026-5661
Vulnerability Information
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Vulnerability Title
Free5GC NGSetupRequest denial of service
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was identified in Free5GC 4.2.0. This affects an unknown function of the component NGSetupRequest Handler. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit is publicly available and might be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
不恰当的资源关闭或释放
Source: NVD (National Vulnerability Database)
Vulnerability Title
free5GC 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
free5GC是free5GC开源的一个第 5 代 (5G) 移动核心网络的开源项目。 free5GC 4.2.0版本存在安全漏洞，该漏洞源于NGSetupRequest Handler组件问题，可能导致拒绝服务攻击。
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 |
|---|---|---|---|---|
| - | Free5GC | 4.2.0 | cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-5661
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · n/a · 2026-04-06 · 33 CVEs total
| CVE-2026-5616 | 7.3 HIGH | JeecgBoot AI Chat JeecgBizToolsProvider.java missing authentication |
| CVE-2026-5624 | 4.3 MEDIUM | ProjectSend upload.php cross-site request forgery |
| CVE-2026-31353 | FeehiCMS 安全漏洞 | |
| CVE-2025-57834 | Samsung多款产品 安全漏洞 | |
| CVE-2025-57835 | SAMSUNG多款产品 安全漏洞 | |
| CVE-2025-59440 | SAMSUNG多款产品 安全漏洞 | |
| CVE-2025-54601 | Samsung多款产品 安全漏洞 | |
| CVE-2025-54324 | Samsung多款产品 安全漏洞 | |
| CVE-2025-54328 | Samsung多款产品 安全漏洞 | |
| CVE-2025-54602 | Samsung多款产品 安全漏洞 | |
| CVE-2025-58349 | Samsung多款产品 安全漏洞 | |
| CVE-2026-30613 | AZIOT 1 Node Smart Switch 安全漏洞 | |
| CVE-2025-61166 | Ascertia SigningHub 安全漏洞 | |
| CVE-2026-31313 | FeehiCMS 安全漏洞 | |
| CVE-2026-31350 | FeehiCMS 安全漏洞 | |
| CVE-2026-31354 | FeehiCMS 安全漏洞 | |
| CVE-2026-31153 | Bynder 安全漏洞 | |
| CVE-2026-31352 | FeehiCMS 安全漏洞 | |
| CVE-2026-31351 | FeehiCMS 安全漏洞 | |
| CVE-2026-31063 | UTT HiPER 1200GW 安全漏洞 |
Showing top 20 of 33 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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free5gc UDR improper path validation allows unauthenticated - CVE-2026-40245
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Same weakness: CWE-404
- CVE-2026-8270
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Open5GS SMF OpenAPI_list_create denial of service - CVE-2026-8267
Open5GS SMF smf_nsmf_handle_created_data_in_vsmf denial of s - CVE-2026-8266
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V. Comments for CVE-2026-5661
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