Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach WebLogic SAML endpoint over network
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DeliveryAuthenticate with low-privilege foothold
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ExploitSubmit crafted SAML assertion/request
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ExecutionBypass authorization in Core component
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PersistCross scope boundary (S:C)
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ImpactTake over WebLogic and impact downstream products
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK
2 techniques across 2 tactics: Defense Evasion, 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 a WebLogic instance whose SAML authentication path is reachable, plus a low-privilege authenticated position (CVSS PR:L) - it is not fully anonymous. The concrete trigger named in the advisory is the SAML flow, so the target must have SAML-based authentication/federation configured and exposed. Limiting factors: the attacker needs some valid low-level credential or trusted SAML relationship, and only the enumerated supported versions (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0) are in scope; instances with SAML disabled or with SAML endpoints restricted to trusted internal networks are substantially harder to reach. No user interaction is required (UI:N). |
| Impact | All signals point to genuine high priority rather than an inflated CVSS number. The vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H combines network reach, low attack complexity, no user interaction, and only low privileges required, yielding a 9.9 with full CIA impact and scope change - meaning an attacker who can authenticate at even a minimal level can pivot to complete takeover and beyond. Mitigating the urgency somewhat: this is a fresh Oracle Critical Patch Update entry (July 2026) with no public POC and no CISA KEV listing, so there is no confirmed active exploitation yet. EPSS data was not provided and cannot be cited. The one caveat to verify: PR:L means the attacker needs some valid low-privilege foothold or credential in the SAML flow, so exposure depends on whether SAML endpoints are internet-reachable and how easily a low-privilege account can be obtained - confirm the deployment's SAML exposure with Oracle's advisory. |
| Exploit ScenarioDerived | An attacker with a low-privilege account (or a foothold in the SAML federation) sends crafted SAML requests or assertions to an internet-reachable WebLogic endpoint over the network without any user interaction. Because the flaw is low-complexity and carries a scope change, a single successful request escalates the attacker to full control of the WebLogic Server and potentially adjacent integrated systems. No public exploit code has been identified yet, so exploitation would currently require independent development. |
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Alert meAnalysisAIv1 – Jul 21, 2026
Full server takeover in Oracle WebLogic Server (Fusion Middleware Core component) is achievable by a low-privileged, network-adjacent attacker abusing the SAML authentication path, with a scope change that can propagate impact into additional connected products. Affected supported versions are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0; the CVSS 9.9 rating reflects complete loss of confidentiality, integrity and availability. No public exploit identified at time of analysis, and the flaw is not listed in CISA KEV, but the low complexity and low privilege requirement make it a top-priority patching item.
RemediationAI
Apply the fixes from Oracle's July 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpujul2026.html) to every affected release (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0); Patch available per vendor advisory, though Oracle CPUs distribute patch bundles rather than a single named fix version, so consult the CPU matrix for the exact patch ID matching your installation. Until patched, reduce exposure by restricting network reachability of WebLogic administrative and SAML/SSO endpoints to trusted networks only (e.g., front them behind a VPN or reverse proxy with strict allow-lists), and if SAML single sign-on is not required, disabling or removing the SAML identity-asserter/service-provider configuration removes the attack surface at the cost of breaking federated login. Tighten and monitor low-privilege account provisioning since PR:L exploitation requires a minimal foothold. Note the trade-off: network restrictions may disrupt legitimate remote administration and federated partners, so stage changes carefully.
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 widely deployed Java EE application server that sits at the core of many Oracle Fusion Middleware stacks. The flaw resides in the 'Core' component and is reached via SAML - the Security Assertion Markup Language single sign-on / federation flow - implying a weakness in how the server validates or processes SAML assertions or trust relationships. Oracle assigned no CWE, but the class is consistent with improper authentication/authorization handling in SAML processing (e.g., assertion validation or signature-trust weaknesses) that lets an authenticated-but-low-privileged principal escalate to full control. The CVSS scope change (S:C) indicates the vulnerable WebLogic component can affect resources beyond its own security authority, such as downstream integrated Fusion Middleware or backend systems that trust WebLogic.
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Network-reachable SAML flow with low complexity and only low privileges required (PR:L), full server takeover gives C/I/A High, and impact beyond the component's authority justifies S:C.
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 SAML 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).
Executive ViewAI
Oracle WebLogic Server (versions 12.2.1.4.0 through 15.1.1.0.0) contains a critical CVSS 9.9 vulnerability enabling complete server compromise through the SAML authentication mechanism by a low-privileged, network-adjacent attacker. With no public exploit identified at time of analysis and no vendor patch currently available, this represents an immediate, unremediable risk to confidentiality, integrity, and availability for affected organizations.
No vendor-released patch identified at time of analysis. Interim mitigations include: network segmentation to restrict SAML endpoint access, disabling SAML authentication where operationally feasible, enhanced monitoring for authentication anomalies and privilege escalation, restricting access to WebLogic instances from low-privileged or untrusted network segments, and maintaining deployment readiness for urgent patched-version updates upon Oracle advisory release.
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.
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EUVD-2026-46612
GHSA-crc2-q53j-p7j9
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB