Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach middleware over HTTP with low-priv account
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DeliverySend crafted request to Centralized Thirdparty Jars
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ExploitExploit OPSS flaw (low complexity)
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ExecutionAchieve full OPSS takeover
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ImpactRead, alter, or disrupt security services
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 Oracle Platform Security for Java HTTP interface and a low-privileged authenticated foothold (CVSS PR:L) - it is not fully unauthenticated. No user interaction is needed and attack complexity is low, so any valid low-level account plus HTTP access to a vulnerable 12.2.1.4.0 or 14.1.2.0.0 deployment is sufficient. Limiting factors that reduce real-world risk: the target must be running one of these specific middleware versions with the Centralized Thirdparty Jars component reachable, and the attacker must already possess some (low) privilege rather than being anonymous; access is over HTTP, so network segmentation of the management/application tier meaningfully constrains reach. |
| Impact | The signals point to a genuine high priority. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) describes an easily exploitable network-facing flaw needing only low privileges, no user interaction, and delivering full CIA impact - Oracle explicitly characterizes it as 'easily exploitable' resulting in product 'takeover'. It is not on the CISA KEV list and no public exploit has been identified, so there is no evidence of active exploitation yet; EPSS was not provided, so widespread-exploitation probability cannot be quantified. There is a minor internal tension worth flagging: the tags label this 'Information Disclosure', yet the vector and Oracle's own text assert high integrity and availability impact plus full takeover - treat this as a full-compromise issue, not merely disclosure. Because Oracle products are attractive enterprise targets and CPU-disclosed middleware flaws are frequently reverse-engineered from the patch, the window between disclosure and exploit development should be treated as short. |
| Exploit ScenarioDerived | An attacker who holds a low-privileged account on an internet- or intranet-reachable Fusion Middleware instance sends crafted HTTP requests to the OPSS Centralized Thirdparty Jars component. Exploiting the flaw with low attack complexity and no user interaction, they escalate to full takeover of the OPSS service, gaining the ability to read protected data, alter security state, and disrupt availability. No public exploit code has been identified at time of analysis, but the low complexity makes weaponization plausible once the patch is analyzed. |
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Alert meAnalysisAIv1 – Jul 22, 2026
Takeover of Oracle Platform Security for Java (OPSS) is possible where a low-privileged attacker with HTTP network access can fully compromise the confidentiality, integrity, and availability of the service. The flaw resides in the Centralized Thirdparty Jars component and affects Oracle Fusion Middleware releases 12.2.1.4.0 and 14.1.2.0.0. It carries a CVSS 3.1 base score of 8.8 and was disclosed in the Oracle Critical Patch Update of July 2026; no public exploit identified at time of analysis.
RemediationAI
Apply the fixes from the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html) to the affected 12.2.1.4.0 and 14.1.2.0.0 middleware installations; this is patch available per vendor advisory, as Oracle CPUs distribute cumulative bundle patches rather than a single named fix version, so consult the advisory for the exact patch number for your platform. Ensure the underlying Fusion Middleware and WebLogic homes are patched, not just deployed applications, since OPSS is a base library. Until patching is complete, reduce exposure by restricting HTTP access to the affected middleware management and application endpoints to trusted networks or via a reverse proxy/WAF, and tighten the privileges of the low-level accounts an attacker would leverage (the vector requires PR:L), accepting that network restrictions may disrupt legitimate integrations that depend on those endpoints. No vendor-supplied standalone workaround is documented, so patching is the only confirmed remediation.
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 core security framework underpinning Oracle Fusion Middleware and WebLogic-based deployments, providing authentication, authorization, credential store, keystore, and audit services to Java EE and ADF applications. The vulnerable element is the 'Centralized Thirdparty Jars' component, which manages the shared bundled third-party libraries used across the middleware stack - a common vector for deserialization, injection, or vulnerable-dependency issues in Java stacks. Oracle did not assign a CWE (listed as N/A) and does not publish root-cause detail in its CPU advisories, so the precise weakness class cannot be confirmed from available data. The affected CPE is cpe:2.3:a:oracle_corporation:oracle_platform_security_for_java, spanning the 12.2.1.4.0 and 14.1.2.0.0 middleware trains.
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Oracle confirms easy HTTP exploitation by a low-privileged attacker with no user interaction yielding full takeover, so AV:N/AC:L/PR:L/UI:N and 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) in Fusion Middleware versions 12.2.1.4.0 and 14.1.2.0.0 can be completely compromised by low-privileged attackers with HTTP network access, exposing all data and availability. No patch is currently available, creating immediate risk across all affected Oracle Middleware deployments. Organizations must assume breach potential until isolation or upgraded versions are deployed.
Network segmentation and firewall-based access restrictions limiting OPSS HTTP connectivity to trusted internal networks only; privilege minimization to reduce the capabilities of low-privileged user accounts; comprehensive logging and real-time alerting on OPSS access patterns, configuration changes, and authentication attempts; planned upgrade to patched Oracle Fusion Middleware release when vendor releases available version.
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
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 compromise of Oracle Platform Security for Java (OPSS), a security framework within Oracle Fusion Middleware, is po
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-2026-47848
GHSA-4gp2-hc93-r36x
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB