CVE-2026-8121 Details
Description
A vulnerability has been found in Open5GS up to 2.7.7. The impacted element is the function ogs_sbi_parse_plmn_list in the library /lib/sbi/conv.c of the component NSSF. The manipulation leads to denial of service. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
A denial-of-service vulnerability has been identified in Open5GS versions through 2.7.7, specifically within the NSSF component. The issue arises in the function 'ogs_sbi_parse_plmn_list' located in the library '/lib/sbi/conv.c'. The vulnerability can be exploited remotely, causing the NSSF process to crash. This occurs when the 'target-plmn-list' parameter contains invalid JSON, leading to a failed assertion and an abrupt termination of the service.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 8, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/open5gs/open5gs/ | [email protected] | Product |
| https://github.com/open5gs/open5gs/issues/4433 | [email protected] | ExploitIssue Tracking |
| https://vuldb.com/submit/808422 | [email protected] | ExploitThird Party AdvisoryVDB Entry |
| https://vuldb.com/submit/808424 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/361908 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/361908/cti | [email protected] | Permissions RequiredVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| open5gs open5gs | <= 2.7.7 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 11, 2026 | Initial Analysis | [email protected] |
| May 8, 2026 | New CVE Received | [email protected] |