Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach Coherence HTTP listener over network
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DeliverySend crafted unauthenticated request
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ExploitTrigger flaw in Core component
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ExecutionAchieve full Coherence takeover
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ImpactAccess or tamper with grid 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 | The prerequisite is network HTTP reachability to an affected Oracle Coherence 12.2.1.4.0 or 14.1.1.0.0 instance (Fusion Middleware Core); per the CVSS vector (AV:N/AC:L/PR:N/UI:N) there is no authentication, no special configuration, and no user interaction required for exploitation against affected versions. What limits exploitation in practice: Coherence cluster/management listeners are often deployed on internal application-tier networks rather than internet-facing, so the primary mitigating factor is network segmentation and whether the vulnerable listener is exposed beyond trusted hosts. Exploitation is constrained to the two named versions; the exact triggering feature/endpoint is not detailed in Oracle's advisory, so verify listener exposure in your specific deployment. |
| Impact | The signals point to high real-world priority. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) indicates network-reachable, low-complexity, unauthenticated exploitation with no user interaction and full impact - the strongest possible exploitability profile short of scope change. No EPSS score, SSVC decision, or POC is provided, and the CVE is not in CISA KEV, so there is currently no evidence of active exploitation or automated weaponization; the risk is driven by exploitability and the product's role rather than confirmed in-the-wild activity. One inconsistency to note: the vendor tag says 'Information Disclosure' while both the description ('takeover') and CVSS (C:H/I:H/A:H) indicate full compromise - treat the CVSS/description as authoritative and the tag as understated. Bottom line: a genuine high priority for any exposed Coherence/WebLogic tier, not a high-CVSS-but-low-real-risk case. |
| Exploit ScenarioDerived | An attacker who can reach a Coherence node's HTTP/listener port from the network sends a crafted request that triggers the flaw without any credentials or user interaction, resulting in full compromise of the Coherence instance and the data it holds. Given AV:N/AC:L/PR:N, a single unauthenticated request over HTTP is sufficient, so an exposed cluster in a DMZ or flat network could be taken over remotely. No public proof-of-concept is identified at time of analysis, so real-world attempts would currently require independent exploit development. |
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Alert meAnalysisAIv1 – Jul 21, 2026
Full remote takeover in Oracle Coherence 12.2.1.4.0 and 14.1.1.0.0 (Fusion Middleware Core component) allows an unauthenticated network attacker to compromise the in-memory data grid over HTTP with no user interaction. Rated CVSS 3.1 9.8 with high confidentiality, integrity, and availability impact, it was disclosed in Oracle's July 2026 Critical Patch Update. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the 'easily exploitable, unauthenticated' profile makes it a prime patching priority.
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; Oracle does not publish a standalone semantic fix version in the CVE data, so identify and apply the specific CPU patch for your Coherence 12.2.1.4.0 or 14.1.1.0.0 release from the CPU patch matrix. Oracle explicitly warns that CPU patches are cumulative and strongly recommends never running unsupported/unpatched versions. Until patching completes, reduce exposure with compensating controls: restrict network access to Coherence cluster and management/HTTP listener ports so they are reachable only from trusted application-tier hosts (segment via firewall/security groups), which prevents untrusted clients from reaching the vulnerable listener but requires accurate inventory of legitimate cluster members; place any Coherence-backed HTTP endpoints behind authenticated reverse proxies or WAF filtering; and disable or block external exposure of Coherence Extend/management endpoints if not required, accepting that remote clients relying on those endpoints will lose connectivity. These controls limit reachability but are not a substitute for the CPU 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 a distributed in-memory data grid (IMDG) used for caching, session management, and low-latency data access, frequently embedded in Oracle WebLogic Server and Fusion Middleware deployments. Cluster and management traffic in these products has historically been exposed over network listeners, and Coherence nodes exchange serialized objects between members and clients - a common root cause for takeover-class flaws in this ecosystem is unsafe deserialization of untrusted data. Oracle did not assign a CWE (CWE: N/A) and does not publish root-cause detail in its CPU advisories, so the exact mechanism is not confirmed from the provided data; the affected CPE is cpe:2.3:a:oracle_corporation:oracle_coherence:*, and the vendor tag 'Information Disclosure' is present although the CVSS reflects full C/I/A compromise, not disclosure alone.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor describes easily exploitable, unauthenticated, network HTTP takeover with full impact, so AV:N/AC:L/PR:N/UI:N and C/I/A all High.
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 and 14.1.1.0.0. 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 critical in-memory data grid component within Fusion Middleware deployments, is vulnerable to unauthenticated remote takeover that could expose cached business data including customer records, session tokens, and sensitive database information. Any network attacker can fully compromise affected systems (versions 12.2.1.4.0 and 14.1.1.0.0) over HTTP without authentication or user interaction. With no vendor patch currently available, immediate network isolation is required to prevent potential data breach.
Implement network segmentation to isolate Coherence servers from untrusted networks and business systems; deploy firewall rules restricting HTTP/HTTPS access to Coherence to authorized systems only; enable network monitoring and logging for all connections to Coherence services; disable remote HTTP management consoles if not operationally required; consider deploying a reverse proxy or Web Application Firewall to control HTTP endpoint access and detect exploitation attempts.
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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GHSA-4jpf-m8r5-vhrc
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB