Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessReach exposed Fusion Middleware HTTP endpoint
-
DeliverySend crafted request to OPSS third-party component
-
ExploitTrigger flaw in centralized jar
-
ExecutionAchieve OPSS takeover (scope change)
-
ImpactPivot to dependent Fusion Middleware products
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 | No special conditions - remote unauthenticated exploitation over HTTP against affected Oracle Platform Security for Java releases (12.2.1.4.0 and 14.1.2.0.0), per CVSS AV:N/AC:L/PR:N/UI:N. The only prerequisite is network reachability to a Fusion Middleware HTTP endpoint that loads the vulnerable 'Centralized Thirdparty Jars' component; no authentication, no privileges, and no user interaction are required. Limiting factors that reduce real-world exposure: the affected OPSS/Fusion Middleware instance must be network-accessible to the attacker (deployments behind segmented management networks or firewalls are less exposed), and only the two named versions are confirmed affected. The scope change (S:C) means a successful compromise can cross into other products sharing the library, widening impact rather than limiting it. |
| Impact | Every available signal points to top-tier priority. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) yields the maximum 10.0: network-reachable, low complexity, no privileges, no user interaction, scope change, and total confidentiality/integrity/availability loss. Oracle explicitly describes it as 'easily exploitable' by an unauthenticated attacker, and the scope change means blast radius extends to additional Fusion Middleware products. Countervailing signals: EPSS is not provided in the input (unknown), the CVE is not in CISA KEV, and no POC is known - so this reflects worst-case theoretical risk rather than confirmed in-the-wild abuse. Under an SSVC lens, technical impact is 'total' and the flaw is very likely 'automatable' given no auth/UI, but exploitation status is currently 'none observed.' The tag 'Information Disclosure' is narrower than the vector's full I and A impacts, a minor inconsistency likely due to tag generalization - the CVSS I:H/A:H should be treated as authoritative. Bottom line: this is a genuine emergency-patch item, not a high-CVSS-but-low-real-risk case, even absent public exploitation evidence. |
| Exploit ScenarioDerived | An attacker who can reach an internet- or intranet-exposed Oracle Fusion Middleware HTTP endpoint sends a single crafted request that exercises the vulnerable centralized third-party library used by OPSS, requiring no credentials and no user interaction. Because the flaw carries a scope change and full CIA impact, the attacker gains complete takeover of the OPSS security layer and can pivot to compromise dependent Fusion Middleware products. No public POC is known at time of analysis, but the low attack complexity means exploit development would be straightforward once details emerge. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Jul 22, 2026
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 possible by an unauthenticated remote attacker over HTTP, per Oracle's July 2026 Critical Patch Update. The flaw resides in the 'Centralized Thirdparty Jars' component and carries a maximum CVSS 3.1 base score of 10.0 with a scope change, meaning successful exploitation can significantly impact products beyond OPSS itself. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the perfect CVSS score and 'easily exploitable' vendor language make this a top-priority patch.
RemediationAI
Apply the Oracle Critical Patch Update of July 2026 as the primary fix; consult https://www.oracle.com/security-alerts/cpujul2026.html for the exact patch/bundle for your release of Oracle Platform Security for Java (12.2.1.4.0 and 14.1.2.0.0). No standalone fixed version string is provided in the input, so treat this as 'Patch available per vendor advisory' and pull the specific CPU patch numbers from the Oracle security alert for your environment; do not invent a version. Given the maximum score, prioritize this over other CPU items and schedule emergency maintenance. If patching cannot be immediate, compensating controls include restricting network reachability to Fusion Middleware/OPSS HTTP endpoints via network ACLs, WAF, or firewall segmentation so only trusted management networks can reach them (trade-off: may break legitimate integrations and administrative access), and increasing monitoring/logging on those hosts for anomalous deserialization or error patterns. Because the component is a shared third-party jar, verify all co-located Fusion Middleware products are patched together to avoid leaving a vulnerable copy of the library in place.
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 security framework underlying Oracle Fusion Middleware and WebLogic-based products, providing authentication, authorization, credential/keystore management, auditing, and policy services (JAAS/JAAS-based) that many Oracle enterprise applications depend on. The affected component, 'Centralized Thirdparty Jars', indicates the root cause almost certainly lies in a bundled/shaded third-party Java library shared across Fusion Middleware, which explains the scope-change (S:C) rating - a defect in this common dependency propagates trust and impact into other Oracle products that consume OPSS. No CWE was assigned by Oracle, so the exact weakness class (e.g., deserialization, XXE, expression-language injection, or a vulnerable logging/serialization library) cannot be confirmed from the data, though 'Centralized Thirdparty Jars' + unauthenticated network HTTP + full CIA takeover is the classic signature of an insecure-deserialization or vulnerable-library flaw. The single CPE provided (cpe:2.3:a:oracle_corporation:oracle_platform_security_for_java:*) is version-agnostic; Oracle's advisory text is authoritative for the affected releases.
Know when Oracle Platform Security For Java gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Oracle confirms unauthenticated network HTTP exploitation with low complexity and full takeover, and the cross-product impact justifies scope change with 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 unauthenticated attacker with network access via HTTP to compromise Oracle Platform Security for Java. While the vulnerability is in Oracle Platform Security for Java, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Platform Security for Java. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
Articles & Coverage 1
Executive ViewAI
Oracle Fusion Middleware versions 12.2.1.4.0 and 14.1.2.0.0 contain a critical vulnerability permitting complete remote system takeover by unauthenticated attackers over HTTP, directly compromising organizations' core business process and data infrastructure. Exploitation requires no credentials, user interaction, or code delivery-any network-accessible instance is immediately vulnerable. Without an available vendor patch, organizations face prolonged exposure to full infrastructure compromise pending Oracle's security update release.
Restrict network access to OPSS components via firewall rules, limiting exposure to authorized IP ranges and internal networks. Deploy Web Application Firewall (WAF) rules to detect and block requests targeting Centralized Thirdparty Jars and OPSS endpoints. Implement enhanced logging and real-time alerting on all HTTP/HTTPS traffic to affected Middleware versions. Network-segment Oracle Fusion Middleware on dedicated VLANs to prevent lateral movement. Maintain escalation procedures with Oracle Support and remain prepared for emergency patching.
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.
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 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-2026-47858
GHSA-6g36-jj7p-rh8m
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB