Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach exposed Coherence TCP port
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DeliverySend crafted request to Core listener
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ExploitExploit unauthenticated flaw
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ExecutionAchieve node takeover
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ImpactCompromise grid confidentiality/integrity/availability
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 | The attacker needs TCP network reachability to an Oracle Coherence listener (cluster member or Coherence*Extend proxy port) on an affected version (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 configuration are required against a reachable node. The primary limiting factor is network exposure: Coherence data-grid ports are typically intended for internal/back-end segments, so exploitation is constrained to attackers who can route to those ports - deployments that firewall Coherence off from untrusted networks materially reduce real-world reachability. |
| Impact | The signals point to genuine high priority rather than inflated CVSS. The CVSS:3.1 vector AV:N/AC:L/PR:N/UI:N/C:H/I:H/A:H (9.8) indicates remote, unauthenticated, low-complexity exploitation with full CIA impact, and Oracle explicitly labels it 'easily exploitable' and resulting in product 'takeover.' Counterbalancing this: there is no EPSS score, no POC, and no CISA KEV entry in the provided data, so there is currently no evidence of active or automated exploitation - the risk is potential, not yet observed. Note a minor inconsistency: the tags list 'Information Disclosure,' but the description and CVSS (I:H/A:H) describe full compromise, not mere disclosure; the CVSS and Oracle narrative should be treated as authoritative over the tag. Overall this is a real patch-now issue for internet- or broadly-network-exposed Coherence nodes. |
| Exploit ScenarioDerived | An attacker who can reach a Coherence cluster or Coherence*Extend proxy TCP port sends a crafted request/object to the exposed listener without any credentials, exploiting the Core flaw to gain control of the node. Because Oracle rates it 'easily exploitable' with low attack complexity and no authentication, a single reachable port is sufficient to achieve takeover; no public POC is available at time of analysis. |
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Alert meAnalysisAIv1 – Jul 21, 2026
Full compromise of Oracle Coherence (Oracle Fusion Middleware Core) is possible by unauthenticated attackers with TCP network access, per Oracle's July 2026 Critical Patch Update. The flaw is rated CVSS 9.8 and described by Oracle as 'easily exploitable,' allowing complete takeover of the in-memory data grid across supported versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. No public exploit identified at time of analysis and it is not listed in CISA KEV, but the unauthenticated network-takeover profile makes it a high-priority patch.
RemediationAI
Apply the fixes from Oracle's July 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cpujul2026.html) - Patch available per vendor advisory; the provided data does not include an exact fixed build number, so consult the CPU matrix for the precise patch for each of 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. Until patched, reduce exposure by restricting network access to Coherence cluster and Coherence*Extend proxy TCP ports so only trusted application hosts can reach them (firewall/segmentation), disabling any internet-facing Coherence*Extend proxy listeners not required, and enabling TLS and authentication on Coherence*Extend/cluster transport where supported - trade-offs are that tightening cluster membership and proxy ACLs can break legitimate client connectivity and requires validating your client/proxy topology before enforcement.
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 to cluster JVMs and share cached objects across nodes in Oracle Fusion Middleware and standalone Java deployments; nodes communicate over TCP (and historically the Coherence*Extend / TCMP cluster protocols). The affected component is 'Core.' Oracle did not assign a CWE (CWE: N/A), but 'takeover' via an unauthenticated network vector in a Java data-grid product is historically consistent with unsafe deserialization of untrusted objects received over the wire - a common root cause in Coherence and WebLogic advisories - though the specific weakness is not confirmed in the provided data. The CPE cpe:2.3:a:oracle_corporation:oracle_coherence:*:*:*:*:*:*:*:* is version-wildcarded and does not itself delimit the fixed builds.
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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 (PR:N) low-complexity (AC:L) TCP network (AV:N) access yielding full takeover, so C:H/I:H/A:H with 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 grid (versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0) contains a critical unauthenticated network vulnerability (CVSS 9.8) enabling complete system compromise. Organizations running affected versions face immediate risk of data breach, service disruption, and loss of data integrity, with no vendor patch currently available. Rapid network containment is required to defend infrastructure until remediation becomes available.
No vendor-released patch identified at time of analysis. Implement immediate network segmentation to restrict TCP access to Coherence systems to trusted networks only. Disable Coherence features or services not operationally critical. Deploy network-based intrusion detection monitoring. Maintain offline backups of critical data managed by Coherence systems separate from primary infrastructure. Establish incident response playbooks for potential Coherence compromise scenarios.
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-2026-46665
GHSA-w848-r93p-w2vj
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB