Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach exposed Coherence HTTP listener
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DeliverySend crafted request to Core component
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ExploitBypass authentication as unauthenticated attacker
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ExecutionAchieve full Coherence takeover
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ImpactAccess cached data and pivot into Fusion Middleware tier
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 | No special conditions - remote unauthenticated exploitation against default configurations of Oracle Coherence, per Oracle's 'easily exploitable' rating and the CVSS vector AV:N/AC:L/PR:N/UI:N. The only prerequisite is network reachability of a Coherence HTTP-capable endpoint (e.g., an Extend proxy or management/REST listener). Limiting factors are therefore purely architectural: exploitation requires that a Coherence HTTP listener be exposed to the attacker's network position, so deployments where Coherence ports are firewalled to trusted internal hosts, bound to loopback, or isolated on a management network are not remotely reachable. Only the three named versions (14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0) are stated as affected. |
| Impact | This is a genuine high-priority issue rather than a high-CVSS-but-low-real-risk case. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, base 9.8) is internally consistent with Oracle's plain-language description of an easily exploitable, unauthenticated, network-based flaw yielding full takeover - the signals do not conflict. No EPSS score, KEV entry, or SSVC decision data was provided, so probabilistic exploitation likelihood cannot be quantified from this input; the absence of a KEV listing means there is no confirmed active exploitation, and no POC was referenced. The primary uncertainty is the root cause: CWE is 'N/A' and the tag 'Information Disclosure' understates the described takeover impact - defenders should treat the full CIA-compromise framing as authoritative. Given Oracle Coherence's typical deployment behind WebLogic/Fusion Middleware in enterprise environments and the trivial exploitation profile, this warrants prompt patching even without KEV confirmation. |
| Exploit ScenarioDerived | An attacker who can reach a Coherence HTTP/Extend listener over the network sends a single crafted request to the Core component and, without any credentials or user interaction, gains full control of the Coherence instance. From that foothold they can read and manipulate cached data across the grid and pivot into the surrounding Fusion Middleware/application tier. No public exploit identified at time of analysis, so exploitation would currently require independent research. |
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Alert meAnalysisAIv1 – Jul 21, 2026
Full takeover of Oracle Coherence (Oracle Fusion Middleware, Core component) can be achieved by unauthenticated remote attackers sending crafted HTTP traffic, affecting versions 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. Oracle rates this CVSS 9.8 with complete confidentiality, integrity, and availability loss, and describes it as 'easily exploitable,' meaning no authentication, user interaction, or special preconditions are required. No public exploit identified at time of analysis, and it is not currently listed in CISA KEV.
RemediationAI
Apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html) - Patch available per vendor advisory; consult the CPU patch matrix for the exact patched build corresponding to your 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0 installation, as Oracle distributes these as CPU patch bundles rather than a single named release version. Until patching is complete, reduce exposure by restricting network access to Coherence Extend proxy and management/HTTP listener ports so they are reachable only from trusted application-tier hosts, placing Coherence clusters on isolated management VLANs behind firewalls, and disabling any internet- or DMZ-facing HTTP endpoints that are not operationally required; note these network controls can disrupt legitimate cross-tier clustering or client Extend connectivity and must be validated against your topology. Enforcing authentication/TLS on Coherence Extend and management interfaces further limits reachability but does not substitute for the vendor patch.
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 Coherence is an in-memory data grid and distributed caching platform embedded within many Oracle Fusion Middleware and WebLogic-based deployments, used for clustering, session replication, and low-latency data access across application tiers. The flaw resides in the Core component and is reachable over HTTP, consistent with Coherence's management/extend proxy and REST-style interfaces that can be exposed on network-facing ports. No CWE was assigned in the source data, so the exact root-cause class (e.g., deserialization, authentication bypass, or injection) cannot be confirmed; however, Oracle's own tagging includes 'Information Disclosure,' while the description states the outcome is full product takeover, indicating a weakness that escalates beyond mere data exposure to complete control. The single affected CPE is cpe:2.3:a:oracle_corporation:oracle_coherence:*:*:*:*:*:*:*:*.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Oracle states unauthenticated, easily exploitable HTTP access yielding full takeover, supporting AV:N/AC:L/PR:N/UI:N with high confidentiality, integrity, and availability impact.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 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 Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence. 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).
Executive ViewAI
Oracle Coherence, a core distributed caching component in Oracle Fusion Middleware, suffers from a critical vulnerability allowing unauthenticated attackers to achieve complete remote system takeover without credentials or user interaction. Compromised instances would enable data theft, system manipulation, and service disruption across affected environments. Organizations running Oracle Fusion Middleware in production face immediate risk across versions 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0.
Network segmentation restricting direct HTTP access to Coherence instances; Web Application Firewall (WAF) filtering of malicious HTTP traffic; disabling unnecessary network listeners on Coherence deployments; continuous vulnerability scanning and behavioral monitoring for unauthorized access patterns; air-gapping or isolating affected systems during the patch availability period if operationally feasible.
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-2026-46647
GHSA-9h8h-g8x2-68j9
NVD
CVE.org
EPSS
Exploit-DB