EUVD-2026-61279
GHSA-8g8p-gm6f-4mq4
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NGAP is network-accessible with no protocol-level authentication; memory leak is triggered by message volume alone with no complexity; availability-only impact consistent with DoS-class memory exhaustion.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
An issue in Open5GS v.2.7.0 allows a remote attacker to cause a denial of service via the ngap_send_to_nas() function in src/amf/ngap-path.c
AnalysisAI
Memory leak in Open5GS v2.7.0's AMF component allows remote unauthenticated attackers to exhaust process memory and crash the Access and Mobility Management Function via crafted NGAP messages. The vulnerable function ngap_send_to_nas() in src/amf/ngap-path.c fails to release allocated memory (CWE-401), enabling a sustained DoS against the 5G core network's connection management plane. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must have network-layer access to the AMF's N2 interface, which communicates via NGAP over SCTP (typically port 38412). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H scores 7.5 and indicates a remotely exploitable, low-complexity, unauthenticated DoS with high availability impact - a consistent and credible vector for a memory leak in a network-facing 5G core function. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis - no fixed version number appears in the available references or advisory data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Open5GS v2.7.0 systems and assess network exposure; implement firewall rules restricting NGAP interface access to trusted peer nodes only. …
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Same weakness CWE-401 – Memory Leak
View allSame technique Denial Of Service
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External POC / Exploit Code
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