What is CVE-2024-56921?

CVE-2024-56921 is a high-severity vulnerability in Open5gs, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2025-02-03.

How severe is CVE-2024-56921?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Open5gs

CVE-2024-56921

An issue was discovered in Open5gs v2.7.2. InitialUEMessage, Registration request sent at a specific time can crash AMF due to incorrect error handling of gmm_state_exception() function upon receipt of the Nausf_UEAuthentication_Authenticate response.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.005 (37.9th 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

Open5gs — versions 2.7.2
N/a — versions n/a

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)
cve@mitre.org (Patch)

Frequently asked questions

What is CVE-2024-56921?: CVE-2024-56921 is a high-severity vulnerability in Open5gs, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2025-02-03.
How severe is CVE-2024-56921?: High severity. CVSS v3 base score is 7.5 out of 10.