Vulnerability Description
A weakness has been identified in Free5GC up to 4.1.0. Affected is the function SessionDeletionResponse of the component SMF. This manipulation causes null pointer dereference. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. It is suggested to install a patch to address this issue.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Free5Gc | Free5Gc | <= 4.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/free5gc/free5gc/Product
- https://github.com/free5gc/free5gc/issues/817ExploitIssue TrackingVendor Advisory
- https://github.com/free5gc/free5gc/issues/817#issue-3832188092ExploitIssue TrackingVendor Advisory
- https://github.com/free5gc/smf/pull/189Issue Tracking
- https://vuldb.com/?ctiid.344498Permissions RequiredVDB Entry
- https://vuldb.com/?id.344498Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.743239ExploitThird Party AdvisoryVDB Entry
FAQ
What is CVE-2026-1976?
CVE-2026-1976 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A weakness has been identified in Free5GC up to 4.1.0. Affected is the function SessionDeletionResponse of the component SMF. This manipulation causes null pointer dereference. The attack is possible ...
How severe is CVE-2026-1976?
CVE-2026-1976 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1976?
Check the references section above for vendor advisories and patch information. Affected products include: Free5Gc Free5Gc.