Open5GS up to 2.7.7 NSSF /lib/sbi/message.c ogs_sbi_discovery_option_add_service_names denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Open5GS up to 2.7.7. This impacts the function ogs_sbi_discovery_option_add_service_names in the library /lib/sbi/message.c of the component NSSF. This manipulation causes denial of service. The identification of this vulnerability is CVE-2026-8122. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability classified as problematic was found in Open5GS up to 2.7.7. Affected by this vulnerability is the function ogs_sbi_discovery_option_add_service_names in the library /lib/sbi/message.c of the component NSSF. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-8122. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1499 for this issue.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202605-1870). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/07/2026 Advisory disclosed
05/07/2026 +0 days VulDB entry created
05/10/2026 +3 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4435
Status: Not defined

CVE: CVE-2026-8122 (🔒)
GCVE (CVE): GCVE-0-2026-8122
GCVE (VulDB): GCVE-100-361909
CNNVD: CNNVD-202605-1870 - Open5GS 安全漏洞

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/07/2026 19:02
Updated: 05/10/2026 16:39
Changes: 05/07/2026 19:02 (57), 05/09/2026 14:29 (6), 05/10/2026 16:39 (1)
Complete: 🔍
Submitter: LinZiyu
Cache ID: 216::103

Submitinfo

Accepted

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