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CVE-2026-30653 - Vulnerability Analysis

HighCVSS: 7.5

Last Updated: March 24, 2026

Free5GC - Denial of Service

Published: March 24, 2026Updated: March 24, 2026PoC AvailableRemote Exploitable

Overview

Free5GC <= 4.2.0 contains a denial of service caused by improper handling in HandleAuthenticationFailure function of AMF component, letting remote attackers cause service disruption, exploit requires network access.

Severity & Score

Severity: High

CVSS Score: 7.5

EPSS Score: 18.4%(Probability of exploitation in next 30 days)

Impact

Remote attackers can cause denial of service, disrupting availability of the affected system.

Mitigation

Update to the latest version beyond 4.2.0.

References

https://github.com/free5gc/free5gc/issues/826

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Mar 24, 2026

🟠 CVE-2026-30653 - High (7.5) 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 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-30653/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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Related Resources

Details

CVE ID: CVE-2026-30653
Severity: High
CVSS Score: 7.5
Type: undefined
Status: modified
EPSS: 18.4%
Social Posts: 1

CWE

NVD-CWE-noinfo
CWE-400

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score

18.4%Probability of exploitation in the next 30 days