Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network HTTP reach with a required low-privilege account gives AV:N/AC:L/PR:L/UI:N; vendor-stated takeover justifies C:H/I:H/A:H with unchanged scope.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.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).
AnalysisAI
Full compromise of Oracle Platform Security for Java (OPSS) in Oracle Fusion Middleware versions 12.2.1.4.0 and 14.1.2.0.0 allows a low-privileged attacker with network access over HTTP to take over the component, per Oracle's July 2026 Critical Patch Update. The flaw yields high confidentiality, integrity, and availability impact and is rated easily exploitable (CVSS 8.8), though no public exploit identified at time of analysis. Because OPSS underpins authentication, authorization, and credential management for the wider Fusion Middleware stack, a takeover has cascading security consequences.
Technical ContextAI
Oracle Platform Security for Java (OPSS) is the security framework underlying Oracle Fusion Middleware and WebLogic-based deployments, providing authentication, authorization, credential store (CSF), keystore, and policy management services to Java EE and Java SE applications. The affected component is 'Centralized Thirdparty Jars', indicating the issue lies in bundled/shared third-party libraries that OPSS consolidates and reuses across products. Oracle assigned no CWE (CWE: N/A) and, consistent with its CPU practice, does not disclose the root-cause class; the vendor tag 'Information Disclosure' hints at a disclosure element, but the CVSS vector's C:H/I:H/A:H and 'takeover' language point to a broader flaw than disclosure alone. The single affected CPE is cpe:2.3:a:oracle_corporation:oracle_platform_security_for_java, aligning the analysis to the OPSS product rather than any specific downstream application.
RemediationAI
Apply the fixes from Oracle's July 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpujul2026.html), which is the authoritative source for the patched bundle/interim-patch numbers for the 12.2.1.4.0 and 14.1.2.0.0 branches - Patch available per vendor advisory; no standalone fixed build number is provided in the input, so obtain the exact patch ID from My Oracle Support per your installed version. Because the attack is network-over-HTTP by a low-privileged user, until patching completes restrict network exposure of Fusion Middleware/WebLogic administrative and application HTTP endpoints to trusted networks or VPN, and tighten the number and privilege of accounts that can authenticate to OPSS-backed applications (side effect: may disrupt legitimate low-privilege integrations). Review and rotate OPSS credential store and keystore secrets after patching in case a foothold existed, and monitor authentication logs for anomalous low-privilege access. Given the 'Centralized Thirdparty Jars' component, confirm that the patch updates the shared third-party libraries across all co-located Fusion Middleware products, not just one application.
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-47850
GHSA-7882-qhfv-hcm4