Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach Coherence TCP proxy/cluster port
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DeliverySend crafted Core protocol message
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ExploitTrigger unauthenticated flaw in node
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ExecutionExecute code and take over node
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ImpactAccess cached data and pivot
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 TCP network reachability to an Oracle Coherence Core listener - a cluster member port or a Coherence*Extend proxy endpoint - on affected versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0. Per the CVSS vector (AV:N/AC:L/PR:N/UI:N), no authentication, no user interaction, and no special non-default configuration are needed against a reachable node: no special conditions beyond network access - remote unauthenticated exploitation against reachable configurations of Oracle Coherence. The primary limiting factor is network exposure: Coherence cluster and proxy ports are frequently confined to internal application tiers, so deployments with proper segmentation and no internet-facing proxy substantially reduce realistic exploitability, while flat networks or exposed proxies face the full risk. |
| Impact | All available severity signals point the same direction: the CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H yields 9.8 Critical - remote, network-reachable, low-complexity exploitation with no privileges or user interaction and total CIA impact. Oracle's own wording ('easily exploitable', 'takeover') reinforces the low-complexity assessment. Counterbalancing signals are absent rather than reassuring: no EPSS score was provided, so exploitation probability cannot be quantified; the CVE is not in CISA KEV, so there is no confirmed active exploitation; and no POC was supplied, so no public exploit is identified at time of analysis. The 'Information Disclosure' tag understates the actual impact, which the vector marks as full integrity and availability compromise as well - treat the tag as incomplete and defer to the CVSS vector. Because Coherence proxy/cluster ports are usually exposed only within application tiers, real-world exposure hinges on network segmentation; internet-exposed or flat-network deployments face the full 9.8 risk. |
| Exploit ScenarioDerived | An attacker who can reach a Coherence cluster or Coherence*Extend proxy port - for example from a compromised host on the same data-center network or an internet-exposed proxy - sends a single crafted TCP message to the Core listener and, because no authentication or user interaction is required, gains code execution or full takeover of the Coherence node. From there they read and manipulate all cached application data and pivot into the surrounding Fusion Middleware/WebLogic environment. No public POC is identified at time of analysis, but the low attack complexity means weaponization would be straightforward once details circulate. |
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Alert meAnalysisAIv1 – Jul 21, 2026
Remote takeover of Oracle Coherence (Fusion Middleware Core component) lets an unauthenticated attacker with TCP network access fully compromise the in-memory data grid. Oracle rates this CVSS 3.1 9.8 with full confidentiality, integrity, and availability impact and describes it as easily exploitable, meaning a single crafted network interaction against a reachable cluster node can yield complete control. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the low complexity and no-authentication profile make it a high-priority patch in the July 2026 Oracle Critical Patch Update.
RemediationAI
Apply the Oracle July 2026 Critical Patch Update (CPU) for Oracle Coherence, which addresses the affected release trains 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0; consult https://www.oracle.com/security-alerts/cpujul2026.html for the exact patch bundle and version applicable to your deployment. Patch status: patch available per vendor advisory (Oracle CPU) - an exact fix version string is not enumerated in the provided data, so verify the specific bundle in the advisory and do not treat any version number as confirmed without checking. Until patched, restrict network access to Coherence cluster and Coherence*Extend proxy ports (commonly TCP 8088/9099 and dynamically allocated cluster ports) with firewall rules and network segmentation so only trusted application hosts can reach them, and never expose these ports to the internet or untrusted VLANs (trade-off: overly tight rules can break legitimate cross-node clustering, so validate cluster membership after changes). Where Coherence*Extend is not required, disable the proxy service to shrink the attack surface. Enable the Coherence Security Framework and SSL for cluster and extend traffic where supported to require authentication and encryption on the wire (trade-off: added configuration effort and slight latency).
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 a distributed in-memory data grid and caching platform bundled with Oracle Fusion Middleware and WebLogic Server, used to share and cluster application state across JVM nodes over TCP (typically the Coherence*Extend proxy and cluster ports). The flaw resides in the Core component and is reachable over the cluster/proxy network protocol. Oracle assigned no CWE (CWE: N/A), but the pattern of unauthenticated network-based full takeover in Java middleware of this type is historically consistent with unsafe deserialization of untrusted data (CWE-502) in the Coherence wire protocol; this root-cause class is inferred from the impact profile, not confirmed by Oracle. The affected CPE is cpe:2.3:a:oracle_corporation:oracle_coherence:*, spanning multiple middleware release trains.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Oracle confirms unauthenticated, network-reachable, easily exploitable full takeover, so AV:N/AC:L/PR:N/UI:N with full C/I/A high and unchanged scope.
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 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 TCP 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 in-memory data grids can be remotely compromised by unauthenticated attackers, enabling complete access to sensitive cached data and potential system manipulation. This CVSS 9.8 vulnerability in Fusion Middleware Core deployments poses immediate risk to data confidentiality and system availability; while no public exploit has been identified, the lack of available vendor patches and ease of exploitation create urgent business continuity and data breach risk.
No vendor-released patch identified at time of analysis. Implement strict network segmentation isolating Coherence clusters from untrusted networks; restrict all cluster access to VPN-authenticated or jump-box connections; deploy intrusion detection monitoring on cluster communication ports with alerts for anomalous connection patterns; enable comprehensive audit logging of cluster membership events and data queries; maintain daily monitoring of security advisories and vulnerability feeds for exploit indicators.
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-2026-46717
GHSA-368c-8453-jwg6
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB