CVE-2026-14624 in amf
Summary
by MITRE • 07/04/2026
A vulnerability was identified in omec-project amf up to 2.0.2/2.1.1. Impacted is an unknown function of the file /go/src/amf/ngap/handler.go of the component NGSetupRequest Handler. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The identifier of the patch is 34bc6724acc97dba1f8691e586da95b042cb612d. To fix this issue, it is recommended to deploy a patch.
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Analysis
by VulDB Data Team • 07/04/2026
This vulnerability resides within the omec-project amf component version 2.0.2/2.1.1 where a critical flaw exists in the NGSetupRequest Handler function located at /go/src/amf/ngap/handler.go. The issue represents a denial of service condition that can be exploited remotely, making it particularly dangerous for network infrastructure components. The vulnerability stems from improper handling of input validation within the NGAP (Next Generation Application Protocol) message processing mechanism, specifically during the initial setup phase of the AMF (Access and Mobility Management Function). This flaw allows an attacker to send malformed or crafted NGAP messages that trigger unexpected behavior in the system's response handling logic. The vulnerability is classified as a remote attack vector since it does not require physical access or local privileges to exploit, making it accessible to any network entity capable of communicating with the affected AMF service. The availability of a publicly accessible exploit increases the risk profile significantly as it eliminates the need for advanced technical skills to launch an attack against systems running vulnerable versions.
The technical implementation of this vulnerability manifests through improper state management and inadequate input sanitization within the NGAP message handler. When processing NGSetupRequest messages, the affected function fails to properly validate incoming parameters or handle exceptional conditions that arise from malformed data structures. This leads to a condition where legitimate system resources become consumed or system states become corrupted, ultimately resulting in service unavailability. The flaw likely involves buffer overflows, null pointer dereferences, or similar memory corruption issues that are commonly associated with denial of service attacks in network protocol implementations. According to CWE classification standards, this vulnerability would fall under CWE-129 or CWE-787 depending on the specific implementation details, representing weaknesses in input validation and memory safety. The attack scenario involves sending specially crafted NGAP messages that cause the AMF to enter an unrecoverable state or consume excessive computational resources, effectively rendering the service unavailable to legitimate users.
The operational impact of this vulnerability extends beyond simple service disruption as it directly affects the core functionality of 5G network infrastructure components. In a production environment, an attacker could exploit this flaw to take down critical AMF services that handle access and mobility management for mobile subscribers, leading to widespread service outages across network operators. The attack surface includes all systems running vulnerable versions of the omec-project amf component, particularly those implementing 5G core network functions where NGAP protocol handling is essential for proper operation. This vulnerability creates a significant risk for network availability as it could be exploited by malicious actors to perform distributed denial of service attacks or to gain leverage in larger attack campaigns targeting mobile network infrastructure. Organizations using this software should consider the potential for cascading failures if multiple AMF instances are affected, as the disruption could propagate throughout the network's mobility management domain.
The recommended mitigation strategy involves immediate deployment of the patch identified by commit hash 34bc6724acc97dba1f8691e586da95b042cb612d which addresses the core validation and input handling issues within the NGAP message processing code. Security teams should prioritize patching affected systems in accordance with their incident response procedures, ensuring that all instances of the vulnerable amf component are updated to prevent exploitation. The patch implementation should include thorough testing in staging environments before deployment to production systems to verify that it does not introduce regressions or compatibility issues. Organizations should also implement network monitoring solutions to detect potential exploitation attempts through unusual NGAP message patterns or traffic spikes that might indicate an active attack. Additional defensive measures could include implementing rate limiting for NGAP message processing, deploying intrusion detection systems specifically configured to identify malformed NGAP messages, and establishing network segmentation strategies to limit the potential impact of successful attacks on critical infrastructure components. According to ATT&CK framework, this vulnerability maps to T1499.004 (Endpoint Denial of Service) and potentially T1566.002 (Phishing via Social Engineering) if attackers use social engineering to gain initial access to systems that can then be exploited for network-level denial of service attacks.