Resource exhaustion in Free5gc

CVE-2026-30653

An issue in Free5GC v.4.2.0 and before allows a remote attacker to cause a denial of service via the function HandleAuthenticationFailure of the component AMF

Vulnerability class: DoS (Denial of Service)

EPSS: 0.004 (31.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-30653?
CVE-2026-30653 is a high-severity vulnerability in Free5gc, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-03-24.
How severe is CVE-2026-30653?
High severity. CVSS v3 base score is 7.5 out of 10.