Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach Coherence TCP port over network
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DeliveryConnect without authentication
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ExploitBypass access control on Core service
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ExecutionQuery in-memory data grid
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ImpactExfiltrate cached confidential data
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 TCP reachability to an affected Oracle Coherence service (Core component) running version 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0 - the attacker must be able to open a connection to the Coherence cluster or proxy listener. Per the CVSS vector (AV:N/AC:L/PR:N/UI:N) no authentication, no user interaction, and no special product feature toggle is stated as required, so default network-reachable deployments are exposed. The key limiting factor is network placement: if Coherence TCP ports are confined to an isolated internal or management network behind firewalls, an external attacker cannot reach the service, sharply reducing real-world exploitability despite the unauthenticated, low-complexity profile. |
| Impact | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N describes a low-barrier attack: network reachable, low complexity, no privileges, no user interaction, with high confidentiality impact but no integrity or availability effect. Oracle explicitly labels it 'easily exploitable,' consistent with AC:L/PR:N, which raises real priority for internet- or broadly-network-exposed Coherence clusters. Countervailing signals: no EPSS probability, no CISA KEV listing, and no public POC are present in the provided data, so there is currently no evidence of active or automated exploitation - the score reflects potential rather than observed abuse. Realistic risk is therefore high for exposed deployments but substantially mitigated in the common case where Coherence cluster ports are confined to trusted internal networks; the practical priority hinges on network exposure of the Coherence TCP listeners. |
| Exploit ScenarioDerived | An attacker who can reach a Coherence cluster or proxy TCP port from the network connects without credentials and queries the grid, retrieving cached application data such as session state, keys, or business records. No user interaction or prior foothold is needed, and because impact is confidentiality-only the intrusion may leave data intact and be harder to detect. No public POC is identified in the available data, so this is a plausible scenario derived from the CVSS vector rather than a demonstrated exploit. |
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Alert meAnalysisAIv1 – Jul 21, 2026
Unauthenticated data disclosure in Oracle Coherence (Oracle Fusion Middleware, Core component) versions 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 lets a remote attacker with only TCP network access read or fully access all Coherence-managed data. Oracle rates it CVSS 3.1 7.5 with confidentiality-only impact and classifies it as easily exploitable; the 'Authentication Bypass' tag indicates the flaw circumvents access controls to expose cluster data. No public exploit identified at time of analysis, and no EPSS or CISA KEV signal is present in the provided data.
RemediationAI
Patch available per vendor advisory: apply the fixes delivered in the Oracle July 2026 Critical Patch Update for Coherence 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 (https://www.oracle.com/security-alerts/cpujul2026.html); Oracle strongly recommends applying CPU patches without delay and does not ship standalone hotfixes outside the CPU. Until patching completes, reduce exposure by restricting network access to Coherence cluster and proxy/*Extend TCP ports so only trusted application hosts can reach them via firewall or security-group allowlisting, and place Coherence clusters on isolated management networks rather than any internet-facing or broadly shared segment - the trade-off is that overly tight rules can break legitimate cluster membership or client tiers, so validate that all authorized nodes and Coherence*Extend clients remain reachable. Where supported, enable Coherence authentication/authorization and TLS on cluster and extend endpoints to limit unauthenticated data access, accepting the added configuration and performance overhead.
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 used within Oracle Fusion Middleware to cache and share application state across clustered JVM nodes, typically communicating over its own TCP-based cluster and proxy protocols (TCMP and Coherence*Extend). The affected 'Core' component provides the fundamental cluster and data-access services, so a weakness here exposes stored grid data directly. No CWE was assigned in the source data, but the vendor's 'Authentication Bypass' tag combined with the confidentiality-only, network-reachable profile points to a broken or missing authentication/authorization control on a network-exposed Coherence service (a CWE-287/CWE-306 class root cause) allowing data reads without valid credentials. 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:N/A:N
Unauthenticated low-complexity TCP access (AV:N/AC:L/PR:N/UI:N) yields full data read but no write or disruption, so C:H with I:N/A:N 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 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 unauthorized access to critical data or complete access to all Oracle Coherence accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Executive ViewAI
Oracle Coherence, a core data caching component in Oracle Fusion Middleware, is vulnerable to unauthenticated remote data disclosure affecting versions 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. An attacker with only network access can extract complete datasets stored in affected Coherence clusters, creating an immediate confidentiality breach for any organization running these versions. Rapid inventory and network isolation of vulnerable systems is essential to prevent data exfiltration before a vendor patch becomes available.
No vendor-released patch identified at time of analysis. Implement network-based compensating controls: restrict all Coherence cluster access to trusted internal networks via firewall rules and network segmentation; require VPN authentication for any remote connectivity to Coherence infrastructure; deploy persistent enhanced logging and alerting on cluster access; prioritize air-gapping or isolating non-critical Coherence deployments; continuously monitor Oracle security advisories for patch availability.
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-2026-46678
GHSA-p2v2-x499-54p9
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB