EUVD-2026-79366
GHSA-vv3j-hh67-rj4f
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Network HTTP with low complexity and no user interaction; low-privilege auth required per description (PR:L); vendor-stated scope change and takeover justify S:C and C:H/I:H/A:H.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionNVD
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: TopLink Integration). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. While the vulnerability is in Oracle WebLogic Server, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
AnalysisAI
An authenticated, low-privileged attacker with network access over HTTP can achieve full takeover of Oracle WebLogic Server through its TopLink Integration component in versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0, with a CVSS 3.1 base score of 9.9 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H). Because attack complexity is low, no user interaction is required, and the scope is changed, a successful exploit can compromise the confidentiality, integrity and availability of the server and may significantly impact additional, dependent or co-located products. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network HTTP access to the TopLink Integration component of Oracle WebLogic Server and a low-privileged authenticated foothold (PR:L) - it is NOT fully unauthenticated. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority vulnerability. … 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 | No vendor-released patch version is confirmed in the available data; the authoritative fix is the Oracle Critical Patch Update described in the Oracle Security Alert at https://www.oracle.com/security-alerts/cspusep2026.html, which should be applied to every deployment running WebLogic Server 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 or 15.1.1.0.0 (confirm the exact patched build in that advisory and in Oracle's CPU documentation before validating remediation). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every Oracle WebLogic Server instance and confirm which run the affected versions (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0); restrict network/HTTP reachability of the TopLink Integration component to trusted management networks only, enforce least privilege by auditing and reducing the number of low-privileged accounts that can authenticate to WebLogic, enable verbose logging and monitoring on authentication and TopLink endpoints, and open a support ticket with Oracle to obtain mitigation guidance or an early patch. …
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