A security flaw has been discovered in Open5GS 2.7.6. This issue affects the function smf_gx_cca_cb/smf_gy_cca_cb/smf_s6b of the component CCA Message Handler. The manipulation results in denial of service. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit has been released to the public and may be used for attacks.
References
| Link | Resource |
|---|---|
| https://github.com/open5gs/open5gs/ | Product |
| https://github.com/open5gs/open5gs/issues/4342 | Exploit Issue Tracking |
| https://github.com/open5gs/open5gs/issues/4342#issue-4021772232 | Issue Tracking |
| https://vuldb.com/?ctiid.353875 | Permissions Required VDB Entry |
| https://vuldb.com/?id.353875 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.771349 | Exploit Third Party Advisory VDB Entry |
Configurations
History
30 Mar 2026, 17:17
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:open5gs:open5gs:2.7.6:*:*:*:*:*:*:* | |
| First Time |
Open5gs
Open5gs open5gs |
|
| References | () https://github.com/open5gs/open5gs/ - Product | |
| References | () https://github.com/open5gs/open5gs/issues/4342 - Exploit, Issue Tracking | |
| References | () https://github.com/open5gs/open5gs/issues/4342#issue-4021772232 - Issue Tracking | |
| References | () https://vuldb.com/?ctiid.353875 - Permissions Required, VDB Entry | |
| References | () https://vuldb.com/?id.353875 - Third Party Advisory, VDB Entry | |
| References | () https://vuldb.com/?submit.771349 - Exploit, Third Party Advisory, VDB Entry |
Information
Published : 2026-03-27 22:16
Updated : 2026-03-30 17:17
NVD link : CVE-2026-4988
Mitre link : CVE-2026-4988
CVE.ORG link : CVE-2026-4988
JSON object : View
Products Affected
open5gs
- open5gs
CWE
CWE-404
Improper Resource Shutdown or Release