Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessReach WebLogic HTTP endpoint
-
DeliveryAuthenticate with low-privilege account
-
ExploitSend crafted request to Core component
-
ExecutionTrigger takeover flaw
-
PersistExecute code in server context
-
ImpactFull server compromise
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires network access to the Oracle WebLogic Server over HTTP and a low level of privilege (CVSS PR:L) - meaning the attacker must be authenticated or otherwise hold a low-privileged account/session rather than being fully anonymous. No user interaction is needed (UI:N) and attack complexity is low (AC:L), and Oracle states the flaw is 'easily exploitable' against the Core component. Limiting factors that reduce realistic exposure: the requirement for some valid low-privilege access narrows the attacker set compared with a pre-auth flaw, and only supported versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0 are named as affected. The specific configuration or feature that must be present is not disclosed in the Oracle advisory data provided. |
| Impact | The signals converge on genuine priority rather than an inflated CVSS. The vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N (network, low complexity, low privilege, no user interaction) combined with Oracle's explicit 'easily exploitable' language and 'takeover' outcome indicates a reliable, repeatable exploit path. The one mitigating factor is PR:L - an attacker needs some level of authenticated or low-privileged access, which distinguishes this from a fully unauthenticated pre-auth RCE and slightly narrows the exposure to environments where attackers can obtain low-privilege credentials or where WebLogic is internet-facing with weak account controls. Countervailing data is limited: no EPSS score, KEV status, POC, or SSVC decision was supplied, so exploitation probability cannot be quantified and there is currently no evidence of active exploitation. WebLogic is a historically heavily-targeted product with a track record of rapid exploit weaponization after Oracle CPUs, so the absence of a POC today should not be read as durable safety - treat as high priority and patch on the next available window. |
| Exploit ScenarioDerived | An attacker who holds a low-privileged WebLogic account - or who reaches an exposed WebLogic HTTP endpoint on a poorly segmented network - sends a crafted HTTP request to the Core component and, thanks to the low attack complexity, reliably triggers full server takeover with confidentiality, integrity, and availability impact. No user interaction is required and the attack executes within the server's security context. No public exploit code has been identified at time of analysis, but Oracle's 'easily exploitable' rating implies a straightforward path to weaponization. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Jul 21, 2026
Server takeover in Oracle WebLogic Server (Fusion Middleware Core component) allows a low-privileged, remote attacker with HTTP network access to fully compromise the server, per the Oracle July 2026 Critical Patch Update. Affected versions are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0, and Oracle rates the flaw 'easily exploitable' with high confidentiality, integrity and availability impact (CVSS 3.1 8.8). No public exploit identified at time of analysis and it is not listed in CISA KEV, but the low attack complexity and authenticated-network vector make it a high-priority patch item.
RemediationAI
Apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html), which is the authoritative source for the exact patch bundle per WebLogic release; Oracle ships this as CPU patches rather than a single tagged version number, so map your installed release (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 or 15.1.1.0.0) to the corresponding July 2026 CPU patch. Because exploitation requires HTTP network reach with low privileges, effective compensating controls until patching include restricting network access to the WebLogic admin and application HTTP/T3 ports to trusted management networks, placing the server behind a WAF or reverse proxy that filters anomalous requests, tightening and auditing low-privilege application accounts to reduce the pool of usable credentials, and where WebLogic offers a filtering mechanism, enabling a strict deserialization/connection filter; note these controls reduce but do not eliminate risk and network restrictions may break legitimate remote integrations. Patch status: patch available per vendor advisory (Oracle July 2026 CPU).
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 WebLogic Server is a Java EE / Jakarta EE application server widely used as the runtime backbone for Oracle Fusion Middleware and custom enterprise Java applications. The vulnerability resides in the 'Core' subsystem, the component that handles request processing, remoting, and internal service dispatch, and is reachable over HTTP. Oracle does not assign a CWE for this issue (CWE: N/A) and does not disclose the mechanism, but historically WebLogic Core takeover flaws stem from unsafe deserialization of untrusted data (CWE-502) or authorization/logic bypass in remote endpoints; the single affected CPE is cpe:2.3:a:oracle_corporation:oracle_weblogic_server. Because the CVSS vector is Scope: Unchanged with full CIA impact, code execution occurs within the WebLogic server's own security context rather than crossing into a separate component.
Know when Oracle Weblogic Server 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:L/UI:N/S:U/C:H/I:H/A:H
Network HTTP vector with low complexity and no user interaction, but low-privilege access is required (PR:L); full server takeover gives high C/I/A within an unchanged scope.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.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 low privileged 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 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).
Executive ViewAI
Oracle WebLogic Server versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 are vulnerable to remote server takeover by low-privileged attackers with HTTP access, enabling full system compromise including data theft and service disruption. Organizations running these versions must implement urgent compensating controls immediately to prevent unauthorized access to mission-critical applications and infrastructure.
No vendor-released patch identified at time of analysis. Interim mitigations include: network-based segmentation restricting WebLogic server access to trusted hosts only; web application firewall deployment with exploitation-signature-based detection rules; network-based intrusion detection focused on WebLogic attack patterns; comprehensive audit logging and real-time monitoring of administrative access; immediate rotation of all administrative credentials; and evaluation of operational necessity to determine which instances can be temporarily disabled or isolated until patches are available.
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
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
More in Oracle Weblogic Server
View allFull server takeover in Oracle WebLogic Server (Fusion Middleware Core component) is achievable by a low-privileged, net
Remote code execution in Oracle WebLogic Server (Oracle Fusion Middleware Core component) allows an unauthenticated atta
Complete takeover of Oracle WebLogic Server 12.2.1.4.0 and 14.1.1.0.0 is possible by remote, unauthenticated attackers s
Complete takeover of Oracle WebLogic Server is possible by unauthenticated remote attackers via HTTP against the Core co
Full server takeover in Oracle WebLogic Server (Fusion Middleware Core component) affects supported versions 12.2.1.4.0
Remote takeover of Oracle WebLogic Server (Fusion Middleware, Core component) lets an unauthenticated network attacker f
Complete server takeover in Oracle WebLogic Server (Fusion Middleware Core component) lets an unauthenticated remote att
Remote takeover of Oracle WebLogic Server (Fusion Middleware Core component) allows an unauthenticated network attacker
Complete server takeover in Oracle WebLogic Server (Fusion Middleware, Core component) is possible by unauthenticated at
Remote takeover of Oracle WebLogic Server (Fusion Middleware Core component) allows an unauthenticated network attacker
Remote unauthenticated compromise of Oracle WebLogic Server (Fusion Middleware Core component) lets network attackers re
Full server takeover in Oracle WebLogic Server (Fusion Middleware Core component) versions 12.2.1.4.0 and 14.1.2.0.0 all
EUVD-2026-46609
GHSA-rqw7-95r3-7jq6
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB