{"id":87104,"date":"2026-06-12T09:57:57","date_gmt":"2026-06-12T09:57:57","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-30736-unauthenticated-remote-exploit-in-java-vm-of-oracle-database-server","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-30736-unauthenticated-remote-exploit-in-java-vm-of-oracle-database-server\/","title":{"rendered":"CVE-2025-30736: Unauthenticated Remote Exploit in Java VM of Oracle Database Server<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

CVE-2025-30736 is a high-impact vulnerability found in the Java VM component of Oracle Database Server, which can be exploited remotely without authentication. If successfully exploited, this vulnerability could lead to unauthorized creation, deletion, modification, and access to critical data, potentially compromising the entire system or leading to data leakage.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-30736
\nSeverity: High (CVSS: 7.4)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Unauthorized data creation, deletion, modification, and access to all Java VM accessible data<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Oracle Database Server | 19.3-19.26
\nOracle Database Server | 21.3-21.17
\nOracle Database Server | 23.4-23.7<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of a vulnerability in the Java VM component of the Oracle Database Server. An unauthenticated attacker with network access can send specially crafted requests to the server to compromise the Java VM. This can result in unauthorized creation, deletion, modification, and access to critical data, or even complete access to all Java VM accessible data.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here’s a conceptual example of how the vulnerability might be exploited. Please note that this is purely hypothetical and should not be attempted.<\/p>\n

POST \/JavaVM\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/xml\n{ \"exploit_payload\": \"\" }<\/code><\/pre>\n
Recommended Mitigation<\/strong><\/p>\n
It is strongly advised to apply the vendor-provided patch to fix this vulnerability. In case the patch cannot be immediately applied, employing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. Nonetheless, these are not long-term solutions and the patch should be applied as soon as possible to fully remediate the vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-30736 is a high-impact vulnerability found in the Java VM component of Oracle Database Server, which can be exploited remotely without authentication. If successfully exploited, this vulnerability could lead to unauthorized creation, deletion, modification, and access to critical data, potentially compromising the entire system or leading to data leakage. Vulnerability Summary CVE ID: CVE-2025-30736 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-87104","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t