Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate with low-privilege DB account
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ExploitReach Java VM over network via SOCKS5
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ExecutionExploit high-complexity integrity flaw
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ImpactModify or delete critical data across scope boundary
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires a low-privileged authenticated account on the Oracle Database Server (PR:L) and network reachability to the Java VM component specifically via the SOCKS5 protocol pathway. The Java VM (Oracle JVM / OJVM) option must be installed and in use within the database for the component to be exposed. Limiting factors are significant: Oracle explicitly rates this 'Difficult to exploit' (AC:H), no user interaction is needed (UI:N), and impact is confined to data integrity (I:H) with no confidentiality or availability loss. The scope change (S:C) is the amplifying factor - a successful attack can impact additional products beyond the Java VM. Affected versions are 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3. |
| Impact | This is a moderate-priority issue, not a top-tier emergency, and the signals are largely consistent. The CVSS 3.1 vector (AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N, base 6.3) describes a network-reachable but hard-to-exploit flaw: AC:H reflects Oracle's own 'Difficult to exploit' language, PR:L means the attacker must already hold a low-privileged database account, and impact is integrity-only (I:H) with no confidentiality or availability loss. The scope change (S:C) is the one factor that elevates concern - a successful attack can reach products beyond the Java VM itself. No EPSS score, CISA KEV listing, or public POC was provided in the input, so there is no public exploit identified at time of analysis and no evidence of active or widespread exploitation. Note a wording conflict: the description says 'low privileged attacker having None privilege,' which is ambiguous, but the authoritative CVSS vector specifies PR:L, so exploitation is treated as requiring authentication. Overall, the combination of high attack complexity, an authentication prerequisite, and integrity-only impact keeps real-world risk well below the alarm implied by Oracle DB's ubiquity; prioritize patching in the normal quarterly cycle, prioritizing internet-exposed or multi-tenant database instances given the scope change. |
| Exploit ScenarioDerived | An attacker who already holds a low-privileged account on an affected Oracle Database instance reaches the Java VM component over the network via a SOCKS5 pathway and, after overcoming significant exploitation difficulty, manipulates data integrity. Because the flaw causes a scope change, the resulting unauthorized creation, deletion, or modification can extend to critical data in additional products beyond the Java VM. No public exploit code is identified at time of analysis, and the high complexity makes opportunistic mass exploitation unlikely. |
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Alert meAnalysisAIv1 – Oct 20, 2026
Oracle Database Server's Java VM (Oracle JVM/OJVM) component carries an integrity-only flaw affecting versions 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3, reachable by a low-privileged account with network access through the SOCKS5 pathway. Oracle explicitly rates the issue as difficult to exploit (AC:H), and impact is limited to unauthorized creation, deletion, or modification of critical and Java VM-accessible data, with a scope change (S:C) meaning additional products can be affected; confidentiality and availability are unaffected. This is a moderate-priority issue rather than a top-tier emergency, and no public exploit code or confirmed active exploitation (CISA KEV) was identified at time of analysis.
RemediationAI
Apply the fixes published in Oracle's October 2026 Critical Patch Update advisory (https://www.oracle.com/security-alerts/cpuoct2026.html), which is the authoritative source for the exact patched release numbers; the supplied data does not state specific fix versions, so confirm the target release against the advisory before upgrading and verify that the OJVM component is included in the patch set, since database-only updates may not address a Java VM flaw. Where patching must be deferred, reduce exposure by restricting network access to the database listener and the SOCKS5 pathway to trusted hosts only (trade-off: legitimate remote clients and application tiers lose connectivity unless explicitly allow-listed), and by removing or disabling the Oracle JVM option on instances that do not require Java stored procedures (trade-off: in-database Java code and dependent applications will fail). Additionally, enforce least privilege so that low-privileged accounts cannot reach OJVM functionality they do not need, and monitor for anomalous SOCKS5 traffic and unexpected DDL/DML activity against critical data, since the assessed impact is integrity-only and may otherwise go unnoticed.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The affected component is Oracle JVM (OJVM), the embedded Java virtual machine option inside Oracle Database Server that runs Java stored procedures and in-database Java code. Exposure requires the OJVM option to be installed and in use, plus network reachability to the component via the SOCKS5 protocol pathway noted in the advisory. The CVSS 3.1 vector AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N describes a remotely reachable, high-complexity attack that requires a low-privileged authenticated account and no user interaction, produces a high integrity impact only, and crosses a security scope boundary so that products relying on the database can be impacted. No CWE identifier was supplied, so the precise root-cause class (for example, a sandbox or permission-check weakness in the Java VM) cannot be confirmed from the provided data, and no CPE strings were provided to narrow the platform footprint beyond the stated version ranges. The supplied tags 'Authentication Bypass', 'Java', and 'Oracle' are not elaborated by the advisory text and should not be read as confirming an authentication bypass beyond the PR:L prerequisite stated in the assessed vector.
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Severity by source
AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
Network-reachable via SOCKS5 but 'difficult to exploit' (AC:H), requires a low-privileged DB account (PR:L), integrity-only impact (I:H) with scope change to other products (S:C).
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Difficult to exploit vulnerability allows low privileged attacker having None privilege with network access via SOCKS5 to compromise Java VM. While the vulnerability is in Java VM, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java VM accessible data. CVSS 3.1 Base Score 6.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N).
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
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EUVD-2026-106807
GHSA-vq22-5jhh-4fgj
NVD
CVE.org
EPSS
Exploit-DB