CVE-2026-30653 | Free5GC up to 4.2.0 AMF HandleAuthenticationFailure denial of service

VDB-352794 · CVE-2026-30653 · GCVE-0-2026-30653 FREE5GC UP TO 4.2.0 AMF HANDLEAUTHENTICATIONFAILURE DENIAL OF SERVICE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.3 $0-$5k 1.75+ Summaryinfo A vulnerability categorized as problematic has been discovered in Free5GC up to 4.2.0. This affects the function HandleAuthenticationFailure of the component AMF. The manipulation results in denial of service. This vulnerability is cataloged as CVE-2026-30653. The attack may be launched remotely. There is no exploit available. Detailsinfo A vulnerability, which was classified as problematic, was found in Free5GC up to 4.2.0. Affected is the function HandleAuthenticationFailure of the component AMF. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes: 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 The advisory is available at github.com. This vulnerability is traded as CVE-2026-30653 since 03/04/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name Free5GC Version 4.0 4.1 4.2.0 Website Product: https://github.com/free5gc/free5gc/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.3 VulDB Base Score: 4.3 VulDB Temp Score: 4.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Denial of service CWE: CWE-404 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/04/2026 CVE reserved 03/24/2026 +20 days Advisory disclosed 03/24/2026 +0 days VulDB entry created 03/24/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-30653 (🔒) GCVE (CVE): GCVE-0-2026-30653 GCVE (VulDB): GCVE-100-352794 Entryinfo Created: 03/24/2026 16:11 Changes: 03/24/2026 16:11 (53) Complete: 🔍 Cache ID: 99:03B:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸