EUVD-2026-79348
GHSA-2xxw-x28h-g67h
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Oracle describes easily-exploitable unauthenticated network HTTP takeover (AV:N/AC:L/PR:N/UI:N) with full triad impact and an explicit scope change to additional products (S:C).
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 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).
AnalysisAI
Unauthenticated remote attackers can achieve full takeover of Oracle Platform Security for Java (OPSS) versions 12.2.1.4.0 and 14.1.2.0.0, an authentication-bypass flaw (CWE-287) in the Centralized Thirdparty Jars component of Oracle Fusion Middleware that carries a maximum CVSS 3.1 base score of 10.0 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H). Because the scope is marked as changed (S:C), Oracle warns that a successful compromise of OPSS - the shared security services layer that other Fusion Middleware components depend on - may significantly propagate impact to additional products, which is what elevates this above the otherwise near-identical 9.8-rated issue. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions per the vector - remote unauthenticated exploitation over HTTP against affected Oracle Platform Security for Java 12.2.1.4.0 and 14.1.2.0.0 in Oracle Fusion Middleware (component: Centralized Thirdparty Jars). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a maximum-severity finding: the vendor CVSS 3.1 base score is a perfect 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H), reflecting a network-reachable, low-complexity, unauthenticated (PR:N) flaw with no user interaction that yields full confidentiality/integrity/availability compromise AND a scope change (S:C) - Oracle explicitly states attacks 'may significantly impact additional products,' which is what pushes this from 9.8 to 10.0 versus its near-twin CVE-2026-82995 (same product/component, S:U, 9.8). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Oracle Critical Security Patch Update referenced at https://www.oracle.com/security-alerts/cspusep2026.html - patch availability is documented per the vendor advisory, but the specific fixed OPSS build number is not disclosed in the available intelligence, so confirm the exact patched version and patch ID for your platform from that advisory before deploying. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, confirm which internet-facing or broadly reachable systems run Oracle Fusion Middleware OPSS 12.2.1.4.0 or 14.1.2.0.0, and where feasible remove them from direct internet exposure by placing them behind authenticated reverse proxies, VPN-only access, or restrictive network ACLs; simultaneously enable and forward OPSS and Fusion Middleware audit, authentication, and HTTP access logs to the SIEM and alert on anomalous authentication-bypass patterns, unexpected administrative sessions, and access to the Centralized Thirdparty Jars component path. …
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Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
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