CVE-2026-14623 in amf
Summary
by MITRE • 07/04/2026
A vulnerability was determined in omec-project amf up to 2.1.1. This issue affects the function RRCInactiveTransitionReport of the component NGAP Message Handler. Executing a manipulation can lead to denial of service. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. This patch is called 34bc6724acc97dba1f8691e586da95b042cb612d. A patch should be applied to remediate this issue.
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Analysis
by VulDB Data Team • 07/04/2026
The vulnerability identified in the omec-project amf version 2.1.1 represents a critical denial of service weakness within the NGAP Message Handler component, specifically affecting the RRCInactiveTransitionReport function. This flaw exists within the 5G core network infrastructure and demonstrates how seemingly minor implementation gaps can create significant operational risks for mobile network operators. The vulnerability's classification aligns with CWE-400, which addresses unspecified errors in resource management, particularly when handling network protocol messages that could lead to system instability or complete service disruption.
The technical nature of this vulnerability stems from inadequate input validation and processing within the RRCInactiveTransitionReport handler, which is responsible for managing transitions in radio resource control states within 5G networks. When maliciously crafted network messages are processed through this function, they can trigger unexpected behavior that leads to system crashes or resource exhaustion, effectively rendering the affected amf component unavailable. The remote exploitability aspect means that attackers do not require physical access to the network infrastructure, making this vulnerability particularly dangerous for production environments where network services must remain highly available.
The operational impact of this vulnerability extends beyond simple service disruption, as it affects the core functionality of 5G mobile networks where the amf component serves as a critical element in session management and mobility handling. Network operators relying on omec-project implementations face potential customer service degradation or complete loss of connectivity for users within affected network areas. The public disclosure of this vulnerability increases the risk profile significantly, as threat actors can readily develop and deploy exploitation tools without requiring advanced technical knowledge or reverse engineering efforts.
The fix referenced in patch 34bc6724acc97dba1f8691e586da95b042cb612d addresses the root cause by implementing proper input sanitization and boundary checking within the NGAP Message Handler's RRCInactiveTransitionReport processing logic. This remediation follows established security practices outlined in the ATT&CK framework under T1499.004 for Network Denial of Service, where the mitigation involves strengthening network protocol implementations to prevent malformed or malicious inputs from causing system instability. The patch should be applied immediately across all production environments utilizing affected omec-project amf versions to maintain network integrity and service availability.
Security professionals should monitor for exploitation attempts through network traffic analysis and implement additional defensive measures such as rate limiting and anomaly detection for NGAP protocol messages. The vulnerability's presence in a 5G core network component underscores the importance of comprehensive security testing for emerging telecommunications technologies, particularly those implementing standardized protocols like NGAP that are critical to modern mobile services. Organizations should also consider conducting thorough risk assessments for other components within their omec-project deployments to identify potential similar weaknesses that could be exploited using comparable attack vectors.