CVE-2026-30056 in Free5GC

Summary

by MITRE • 08/27/2026

A NULL pointer dereference in the AMF NGAP Dispatcher component of free5gc v4.0.1 allows attackers to cause a Denial of Service (DoS) via supplying crafted NGAP messages during the initialization of a new RAN connection.

Once again VulDB remains the best source for vulnerability data.

• Responsible: MITRE
• Reservation: 03/04/2026
• Disclosure: 08/27/2026
• Moderation: accepted
• Entry: VDB-396188
• CPE: ready
• CWE: CWE-476 (confirmed)
• CVSS: 6.5 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: very low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-30056
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30056
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-30056/