CVE-2026-1974— Free5GC SMF datapath.go ResolveNodeIdToIp denial of service
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I. Basic Information for CVE-2026-1974
Vulnerability Information
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Vulnerability Title
Free5GC SMF datapath.go ResolveNodeIdToIp denial of service
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was identified in Free5GC up to 4.1.0. This affects the function ResolveNodeIdToIp of the file internal/sbi/processor/datapath.go of the component SMF. The manipulation leads to denial of service. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. It is recommended to apply a patch to fix this issue.
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 4.1.0及之前版本存在安全漏洞，该漏洞源于对文件internal/sbi/processor/datapath.go中ResolveNodeIdToIp函数的错误操作，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 |
|---|---|---|---|---|
| - | Free5GC | 4.0 | cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-1974
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · n/a · 2026-02-06 · 10 CVEs total
| CVE-2026-2062 | 5.3 MEDIUM | Open5GS PGW S5U Address sgwc_sxa_handle_session_modification_response null pointer derefer |
| CVE-2026-1979 | 5.3 MEDIUM | mruby JMPNOT-to-JMPIF Optimization vm.c mrb_vm_exec use after free |
| CVE-2026-1976 | 5.3 MEDIUM | Free5GC SMF SessionDeletionResponse null pointer dereference |
| CVE-2026-1975 | 5.3 MEDIUM | Free5GC pfcp_reports.go identityTriggerType null pointer dereference |
| CVE-2026-1973 | 5.3 MEDIUM | Free5GC SMF establishPfcpSession null pointer dereference |
| CVE-2026-1998 | 3.3 LOW | micropython runtime.c mp_import_all memory corruption |
| CVE-2026-1991 | 3.3 LOW | libuvc UVC Descriptor device.c uvc_scan_streaming null pointer dereference |
| CVE-2026-1990 | 3.3 LOW | oatpp Type.hpp ObjectWrapper null pointer dereference |
| CVE-2025-70963 | GoPhish 安全漏洞 |
IV. Related Vulnerabilities
Same product: Free5GC
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free5gc UDR fail-open request handling in PolicyDataSubsToNo - CVE-2026-40248
free5gc UDR improper path validation allows unauthenticated - CVE-2026-40247
free5gc UDR improper path validation allows unauthenticated - CVE-2026-40246
free5gc UDR improper path validation allows unauthenticated - CVE-2026-40245
Free5GC: UDR nudr-dr influenceData/subs-to-notify leaks SUPI
Same vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
Same weakness: CWE-404
- CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
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
Open5GS SMF gsm-build.c gsm_build_pdu_session_establishment_
V. Comments for CVE-2026-1974
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