CVE-2025-21553: java virtual Auth Bypass — Fix

Description

Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 19.3-19.25, 21.3-21.16 and 23.4-23.6. Difficult to exploit vulnerability allows low privileged attacker having Create Session, Create Procedure privilege with network access via Oracle Net to compromise Java VM. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java VM accessible data as well as unauthorized read access to a subset of Java VM accessible data. CVSS 3.1 Base Score 4.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N).

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CVSS v3.1 Score

4.2

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-863 Incorrect Authorization

Affected Products

Vendor	Product	Versions
oracle	java_virtual_machine	19.3 — 19.25
oracle	java_virtual_machine	21.3 — 21.16
oracle	java_virtual_machine	23.4 — 23.6

References

Advisories & Patches

https://www.oracle.com/security-alerts/cpujan2025.html

Frequently Asked Questions

What is CVE-2025-21553? +

Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 19.3-19.25, 21.3-21.16 and 23.4-23.6. Difficult to exploit vulnerability allows low privileged attacker having Create Session, Create Procedure privilege with network access via Oracle Net to compromise Java VM. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java VM accessible data as well as unauthorized read access to a subset of Java VM accessible data. CVSS 3.1 Base Score 4.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N). It has a CVSS v3.1 base score of 4.2 (MEDIUM).

How severe is CVE-2025-21553? +

CVE-2025-21553 has a CVSS v3.1 score of 4.2 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-21553? +

CVE-2025-21553 affects products from oracle, specifically: java_virtual_machine. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-21553? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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