CVE-2026-4988

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.

CVSS v3 3.7 LOW
CVSS v2.0 2.6 LOW

3.7^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

2.6^/10

CVSS v2.0 : LOW

Vector : AV:N/AC:H/Au:N/C:N/I:N/A:P

Exploitability : 4.9 / Impact : 2.9

Access Vector NETWORK

Access Complexity HIGH

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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

Configuration 1 (hide)

cpe:2.3:a:open5gs:open5gs:2.7.6:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-27 22:16

Updated : 2026-06-17 10:57

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

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