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CVE-2026-8744— Open5GS NRF context.c ogs_sbi_nf_service_add denial of service

CVSS 4.3 · Medium EPSS 0.08% · P23

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 8

VendorProductVersion RangeStatus
n/aOpen5GS2.7.0affected
2.7.1affected
2.7.2affected
2.7.3affected
2.7.4affected
2.7.5affected
2.7.6affected
2.7.7affected
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I. Basic Information for CVE-2026-8744

Vulnerability Information
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Vulnerability Title
Open5GS NRF context.c ogs_sbi_nf_service_add denial of service
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 819db11a08b9736a3576c4f99ceb28f7eb99523a. A patch should be applied to remediate this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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
Open5GS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open5GS是Open5GS开源的一个 5G Core 和 Epc 的 C 语言开源实现，即 Lte/Nr 网络的核心网络。 Open5GS 2.7.7及之前版本存在安全漏洞，该漏洞源于NRF组件中context.c文件的ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add函数存在拒绝服务。攻击者可能远程利用此漏洞。
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

VendorProductAffected VersionsCPESubscribe
-Open5GS 2.7.0 cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8744

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III. Intelligence Information for CVE-2026-8744

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Patches & Fixes for CVE-2026-8744 (3)

Other References for CVE-2026-8744 (1)

Same Patch Batch · n/a · 2026-05-17 · 11 CVEs total

CVE-2026-87476.3 MEDIUMZ-BlogPHP Commend Approval c_system_event.php CheckComment improper authorization
CVE-2026-87436.3 MEDIUMOpen5GS AMF/MME context.c ran_ue_find_by_amf_ue_ngap_id improper authorization
CVE-2026-87244.7 MEDIUMDataease Data Dashboard SqlparserUtils.java SqlparserUtils.transFilter sql injection
CVE-2026-87464.3 MEDIUMOpen5GS NRF nghttp2-server.c discover_handler use after free
CVE-2026-87454.3 MEDIUMOpen5GS AUSF nausf-handler.c ogs_timer_add denial of service
CVE-2026-87314.3 MEDIUMOpen5GS NRF client.c ogs_sbi_client_add denial of service
CVE-2026-87304.3 MEDIUMOpen5GS NRF context.c ogs_sbi_nf_instance_set_id denial of service
CVE-2026-87294.3 MEDIUMOpen5GS NRF message.c denial of service
CVE-2026-87284.3 MEDIUMOpen5GS NRF conv.c ogs_sbi_discovery_option_parse_plmn_list denial of service
CVE-2026-87413.1 LOWEMQX QoS 2 PUBLISH Packet emqx_persistent_session_ds.erl race condition

IV. Related Vulnerabilities

Same product: Open5GS
Same vendor: n/a
Same weakness: CWE-404

V. Comments for CVE-2026-8744

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