Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor describes unauthenticated network HTTP exploitation with no user interaction resulting in full server takeover, giving AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). 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 unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
AnalysisAI
Remote takeover of Oracle WebLogic Server (Fusion Middleware Core component) allows an unauthenticated network attacker to fully compromise the server via HTTP, per Oracle's July 2026 Critical Patch Update. Affected releases are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0, all carrying a maximum-severity CVSS 3.1 score of 9.8 with full confidentiality, integrity and availability impact. No public exploit identified at time of analysis, but WebLogic's history as a repeated exploitation target makes this a high-priority patch.
Technical ContextAI
Oracle WebLogic Server is a Java EE application server and a core component of the Oracle Fusion Middleware stack, widely used to host enterprise Java applications and expose administrative and application endpoints over HTTP/T3. The flaw resides in the 'Core' component and is reachable over the network via HTTP without authentication, a pattern historically associated with insecure deserialization of untrusted data in WebLogic's request-handling and IIOP/T3/HTTP dispatch paths. No CWE was assigned in the provided data, so the exact root-cause class cannot be confirmed; the single CPE (cpe:2.3:a:oracle_corporation:oracle_weblogic_server) confirms the affected product but is unversioned, so version scoping comes from the Oracle advisory text rather than structured CPE ranges.
RemediationAI
Apply Patch available per vendor advisory: install the fixes delivered in the Oracle July 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpujul2026.html) for your specific release (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 or 15.1.1.0.0), as Oracle CPU bundles are the supported remediation path; no standalone fixed build number was provided in the input, so consult the advisory's patch matrix for the exact patch ID. Until patched, reduce exposure by restricting network access to the WebLogic administrative and application HTTP ports so they are not internet-facing (place behind a VPN or allowlist), and disable or firewall the T3/T3s and IIOP protocols if not required, since these have historically broadened the WebLogic attack surface - note this can break legacy clients and inter-server RMI calls that depend on T3/IIOP. Deploy a WAF or reverse proxy in front of WebLogic to filter anomalous HTTP requests as a detection/slowdown measure, understanding it is not a substitute for the vendor patch.
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-46605
GHSA-hqjw-2f5m-pw33