Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain low-privilege authenticated HTTP access
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DeliverySend crafted request to Centralized Thirdparty Jars component
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ExploitTrigger OPSS takeover flaw
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ExecutionExecute privileged actions as OPSS
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ImpactCompromise credentials, policy and availability
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires network reachability to the OPSS/Fusion Middleware HTTP interface and possession of a low-privilege authenticated account (CVSS PR:L), targeting the Centralized Thirdparty Jars component of Oracle Platform Security for Java versions 12.2.1.4.0 or 14.1.2.0.0. No user interaction is needed (UI:N) and attack complexity is low (AC:L), so once an attacker has any valid low-privilege session with HTTP access, exploitation is straightforward. Limiting factors: the required authentication (this is not anonymous/unauthenticated), the need for HTTP-layer reachability to the affected service, and applicability only to the two named supported versions - internet-exposed instances with weak low-privilege account controls are most at risk. |
| Impact | The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, base 8.8) signals a genuinely high-priority issue: network-reachable over HTTP, low attack complexity, no user interaction, and full triad impact culminating in product takeover. The main moderating factor is PR:L - the attacker must already hold some low-privilege authenticated access, which limits purely anonymous internet exploitation. No EPSS score, SSVC decision, KEV entry, or POC was provided, so exploitation probability cannot be quantified and no active exploitation is confirmed; this tempers urgency relative to a KEV-listed bug but does not lower the intrinsic severity. A data conflict is worth flagging: the tags label this "Information Disclosure," yet the CVSS vector and Oracle's "takeover" language indicate full integrity and availability compromise - treat the tag as incomplete and rely on the CVSS/description, which describe far more than disclosure. |
| Exploit ScenarioDerived | An attacker who already holds a low-privilege authenticated account (for example, a limited application or console user) sends crafted HTTP requests to the OPSS-backed Fusion Middleware endpoint, abusing the Centralized Thirdparty Jars component to escalate to full control of the OPSS instance. Because attack complexity is low and no user interaction is required, a single reachable session is enough to pivot to reading credentials/keystores, altering security policy, and disrupting service. No public exploit identified at time of analysis, so this reflects the CVSS-derived path rather than an observed exploit. |
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Alert meAnalysisAIv1 – Jul 22, 2026
Full compromise of Oracle Platform Security for Java (OPSS), a security framework within Oracle Fusion Middleware, is possible when a low-privileged attacker reaches the affected instance over HTTP via the Centralized Thirdparty Jars component. Oracle rates the flaw CVSS 3.1 8.8 and describes it as "easily exploitable," resulting in a complete takeover of OPSS with high confidentiality, integrity, and availability impact. No public exploit identified at time of analysis and it is not in CISA KEV, but the low attack complexity and only a low-privilege authenticated prerequisite make it a strong candidate for prompt patching in Oracle environments.
RemediationAI
Apply the fixes from the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html), the authoritative source for the patched bundle-patch numbers for OPSS 12.2.1.4.0 and 14.1.2.0.0; Oracle did not publish a discrete semantic fix version in the provided data, so use the CPU-listed patch for your exact Fusion Middleware release (Patch available per vendor advisory). Because the flaw is network/HTTP reachable and only requires low privileges, compensating controls until patching completes include restricting network access to the OPSS/Fusion Middleware management and application HTTP endpoints to trusted administrative networks only, tightening account provisioning so few low-privilege accounts exist, and placing a WAF/reverse-proxy in front of the affected HTTP listeners to filter anomalous requests. Trade-offs: network restrictions can break legitimate integrations and inter-tier calls, and WAF rules for an unknown-CWE flaw are best-effort and may miss the specific vector - none of these substitute for the CPU patch.
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
Oracle Platform Security for Java (OPSS) is the standard security abstraction layer used across Oracle Fusion Middleware and WebLogic deployments, providing authentication, authorization, credential/keystore management, and audit services to Java EE applications. The vulnerable element is the "Centralized Thirdparty Jars" component - the bundled/shared third-party library set OPSS ships and loads - which suggests the root cause is likely a vulnerable or mishandled dependency rather than OPSS's own core logic. Oracle assigned no CWE (CWE: N/A), so the precise weakness class (e.g., deserialization, injection, or a known flaw in a bundled library) cannot be confirmed from the provided data; the CPE cpe:2.3:a:oracle_corporation:oracle_platform_security_for_java:*:*:*:*:*:*:*:* confirms the affected product line without pinning exact library versions.
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
HTTP-reachable (AV:N), low complexity (AC:L), requires a low-privilege account (PR:L), no interaction (UI:N); Oracle-described full product takeover yields C:H/I:H/A:H.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thirdparty Jars). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Platform Security for Java. Successful attacks of this vulnerability can result in takeover of Oracle Platform Security for Java. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Executive ViewAI
Oracle Platform Security for Java (OPSS), which protects all Oracle Fusion Middleware applications, can be completely compromised by low-privilege authenticated attackers over HTTP. This enables unauthorized access across all protected applications and their data. No patch is currently available, making interim mitigation urgent.
Implement network segmentation to restrict HTTP access to OPSS instances to authorized administrative networks only; enforce multi-factor authentication for all access to affected systems; enable detailed audit logging for authentication, authorization, and resource access events; establish real-time monitoring for suspicious access patterns and privilege escalation attempts; create a patch management process to immediately deploy vendor patches upon release.
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
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
Complete takeover of Oracle Platform Security for Java (OPSS) in Oracle Fusion Middleware 12.2.1.4.0 and 14.1.2.0.0 is p
Full compromise of Oracle Platform Security for Java (OPSS) in Oracle Fusion Middleware versions 12.2.1.4.0 and 14.1.2.0
Full compromise ("takeover") of Oracle Platform Security for Java (OPSS), a core security framework shipped inside Oracl
Remote takeover of Oracle Platform Security for Java (OPSS), a security framework bundled with Oracle Fusion Middleware
Takeover of Oracle Platform Security for Java (OPSS) is possible where a low-privileged attacker with HTTP network acces
Full compromise of Oracle Platform Security for Java (OPSS) in Oracle Fusion Middleware 12.2.1.4.0 and 14.1.2.0.0 is pos
Full compromise of Oracle Platform Security for Java (OPSS) in Oracle Fusion Middleware versions 12.2.1.4.0 and 14.1.2.0
Full takeover of Oracle Platform Security for Java (OPSS) is possible in Fusion Middleware versions 12.2.1.4.0 and 14.1.
Full takeover of Oracle Platform Security for Java (OPSS), a security framework within Oracle Fusion Middleware, is poss
Full takeover of Oracle Platform Security for Java (OPSS), a security framework bundled with Oracle Fusion Middleware 12
EUVD-2026-47851
GHSA-2xv9-f975-hc73
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB