Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-8745— Open5GS AUSF nausf-handler.c ogs_timer_add denial of service

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.

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AUSF组件中nausf-handler.c文件的ogs_timer_add函数存在拒绝服务。攻击者可能远程利用此漏洞。

CVSS 4.3 · Medium EPSS 0.37% · P30

Affected Version Matrix 8

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
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-8745

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Open5GS AUSF nausf-handler.c ogs_timer_add denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function ogs_timer_add in the library /src/ausf/nausf-handler.c of the component AUSF. The manipulation leads to denial of service. The attack can be initiated remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
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
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5
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AUSF组件中nausf-handler.c文件的ogs_timer_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

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

II. Public POCs for CVE-2026-8745

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-8745

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-8745 (1)

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

CVE-2026-8747 6.3 MEDIUM Z-BlogPHP Commend Approval c_system_event.php CheckComment improper authorization
CVE-2026-8743 6.3 MEDIUM Open5GS AMF/MME context.c ran_ue_find_by_amf_ue_ngap_id improper authorization
CVE-2026-8724 4.7 MEDIUM Dataease Data Dashboard SqlparserUtils.java SqlparserUtils.transFilter sql injection
CVE-2026-8746 4.3 MEDIUM Open5GS NRF nghttp2-server.c discover_handler use after free
CVE-2026-8744 4.3 MEDIUM Open5GS NRF context.c ogs_sbi_nf_service_add denial of service
CVE-2026-8731 4.3 MEDIUM Open5GS NRF client.c ogs_sbi_client_add denial of service
CVE-2026-8730 4.3 MEDIUM Open5GS NRF context.c ogs_sbi_nf_instance_set_id denial of service
CVE-2026-8729 4.3 MEDIUM Open5GS NRF message.c denial of service
CVE-2026-8728 4.3 MEDIUM Open5GS NRF conv.c ogs_sbi_discovery_option_parse_plmn_list denial of service
CVE-2026-8741 3.1 LOW EMQX 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-2026-8745

No comments yet

Leave a comment