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Oracle Coherence CVE-2026-60229

| EUVDEUVD-2026-46644 CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-07-21 oracle GHSA-wmm7-2925-jr64
9.8
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach Coherence TCP listener on network
  2. Delivery
    Send crafted message to Core component
  3. Exploit
    Trigger unsafe object processing
  4. Execution
    Execute code in Coherence JVM
  5. Impact
    Take over Coherence instance and cached 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 Oracle Coherence listener (the cluster/TCMP port or a 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 CVSS PR:N/UI:N/AC:L and Oracle's 'easily exploitable' rating, no authentication, no user interaction, and no non-default configuration are stated as required beyond having a reachable Coherence endpoint. The primary limiting factor is network exposure: Coherence cluster/proxy ports are frequently confined to internal or management segments, so attackers must first reach that segment; environments that expose these ports across broad or untrusted networks are directly exploitable, while segmented deployments substantially reduce reachable attack surface.

Impact

This is a genuine high priority, not a high-CVSS-but-low-real-risk case. The CVSS vector AV:N/AC:L/PR:N/UI:N is maximally favorable to an attacker: network reachable, low complexity, no privileges, no user interaction, with C:H/I:H/A:H yielding a 9.8 and Oracle's own 'easily exploitable' and 'takeover' language. No EPSS score, KEV entry, POC, or SSVC decision data was provided in the input, so probability-of-exploitation and automatability cannot be quantified from the data given - the assessment rests on the CVSS vector and Oracle's advisory language alone. One inconsistency to verify: the Tags label this 'Information Disclosure,' but the description and the C:H/I:H/A:H vector describe full takeover, so the tag understates the impact - treat the description/vector as authoritative. Because Coherence cluster ports are often exposed on internal networks and sometimes at trust boundaries, exposure depends heavily on deployment; internet-facing or flat-network Coherence listeners represent the highest real-world risk.

Exploit ScenarioDerived

An attacker who can reach a Coherence cluster or Extend proxy TCP port sends a crafted message to the Core component from an unauthenticated position on the network. With no credentials and low complexity, the payload drives object processing on the target node to achieve full takeover of the Coherence instance, giving control over cached data and code execution in the Coherence JVM. No public exploit is identified at time of analysis, but the unauthenticated, low-complexity profile means a working exploit would be highly reusable once developed.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.5% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 21, 2026

Remote takeover of Oracle Coherence (Core component) in Oracle Fusion Middleware allows an unauthenticated attacker with only TCP network access to fully compromise the in-memory data grid, per Oracle's July 2026 Critical Patch Update. The CVSS 3.1 base score is 9.8 with high confidentiality, integrity, and availability impact, and Oracle rates it 'easily exploitable.' No public exploit has been identified at time of analysis and the flaw is not listed in CISA KEV, but the combination of no authentication and full-system takeover makes it a top-priority patch.

RemediationAI

Apply the fixes from the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html) for each affected version (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0); an exact fixed build number was not included in this input, so obtain the precise patch/bundle-patch identifier from that advisory and MOS. Because the vector is unauthenticated network TCP, the highest-value compensating control until patching is network isolation: restrict the Coherence cluster (TCMP) and Coherence*Extend proxy listener ports to trusted management subnets via firewall/ACLs and ensure no Coherence listener is internet-exposed (side effect: cross-datacenter or client-tier connectivity may break if segmentation is too tight). Where supported, enable Coherence security features such as TLS/SSL on cluster and Extend connections and identity/host-based access control to authenticate peers (side effect: configuration and certificate management overhead), and if the class involves deserialization, enforce POF/serialization allowlists rather than default Java serialization. These are stopgaps only - the Oracle CPU patch is the definitive fix.

Affected VersionsENISA

Oracle Coherence 14.1.2.0.0
Oracle Coherence 12.2.1.4.0
Oracle Coherence 15.1.1.0.0
Oracle Coherence 14.1.1.0.0

Affected Packages

euvd oracle_coherence no fix

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 Java-based distributed in-memory data grid and caching platform used to scale and cluster stateful application data across Fusion Middleware and WebLogic-based deployments. The flaw resides in the 'Core' component, which handles cluster membership and inter-node communication over Coherence's TCP-based cluster/proxy protocols (Coherence*Extend / TCMP). Oracle did not assign a CWE (CWE: N/A), but historically Coherence takeover flaws in this class stem from unsafe deserialization of untrusted objects received over the cluster/extend TCP listener, which lets a remote peer drive Java object instantiation and gadget-chain execution. The CPE 'cpe:2.3:a:oracle_corporation:oracle_coherence' confirms this is the standalone Coherence product rather than a bundled component.

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Severity by source

Vendor (oracle) PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 9.8 CRITICAL

Oracle states unauthenticated network TCP exploitation that is easily exploitable and yields full takeover, so AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H with unchanged scope.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Why It Matters

Oracle Coherence, a critical in-memory data grid component used in Oracle Fusion Middleware deployments, can be completely compromised by unauthenticated remote attackers via TCP network access alone. This vulnerability threatens the confidentiality and integrity of cached business data, customer information, and application state stored in Coherence clusters. Any organization running Oracle Fusion Middleware must treat this as a top-priority remediation to prevent potential data breach and operational disruption.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: Implement strict network segmentation to restrict TCP access to Coherence clusters from untrusted networks and limit to essential systems only; enforce network-level egress filtering for Coherence ports; enable detailed logging and monitoring on all Coherence component access and authentication attempts; coordinate with Oracle for emergency patch availability; consider temporary isolation of non-critical Coherence clusters during high-risk operational windows; maintain air-gap or VPN-only network access to all Coherence infrastructure until patch is released and deployed.

Threat Intelligence Overview

EPSS Score
0.5%
Top 61% exploitable
Prevalence
Medium
enterprise data-grid bundled with WebLogic/Fusion Middleware, common but not ubiquitous
Data Quality
4 sources
Confidence: Medium

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.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.5%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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