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Oracle Coherence CVE-2026-60288

| EUVDEUVD-2026-46703 CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-07-21 oracle GHSA-xrjp-whcr-fxrm
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 port over network
  2. Delivery
    Send crafted message to pre-auth Core listener
  3. Exploit
    Trigger unsafe processing in proxy/cluster layer
  4. Execution
    Execute code on Coherence node
  5. Impact
    Full takeover of Coherence server

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 only TCP network reachability to an affected Oracle Coherence Core listener (cluster TCMP transport or a Coherence*Extend proxy port) - no authentication, credentials, or user interaction are required per the vector PR:N/UI:N and Oracle's 'easily exploitable' rating. The practical limiting factor is network exposure: exploitation requires the Coherence port to be reachable by the attacker, so deployments where these ports are confined to isolated backend/cluster segments and firewalled from untrusted networks materially reduce realistic risk. Exploitation is constrained to the four listed supported versions (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0).

Impact

All available signals point to genuine high priority rather than an inflated CVSS score. The vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H describes remote, low-complexity, unauthenticated exploitation with no user interaction and full CIA impact, and Oracle's own 'easily exploitable' language reinforces low attack complexity. Countervailing that, no EPSS score is provided, the CVE is not in CISA KEV (no confirmed active exploitation), and no public POC is identified, so exploitation today appears theoretical rather than observed. One data conflict must be flagged: the input Tags label this 'Information Disclosure', yet the description and CVSS both state full takeover with high integrity and availability impact - the description/CVSS should be trusted over the tag, which appears to be a loose categorization. Because the component sits on the network before authentication and impact is total, defenders should treat this as a top-tier patch even absent exploitation evidence.

Exploit ScenarioDerived

An attacker who can reach a Coherence cluster or Extend proxy TCP port from the network sends a crafted message to the pre-authentication Core listener and triggers server-side code execution, achieving full takeover of the Coherence process and its host context. Because the vector is AV:N/AC:L/PR:N/UI:N, no credentials, user interaction, or elaborate setup are needed. No public exploit identified at time of analysis, so this scenario is derived from the CVSS profile rather than an observed exploit.

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 (Fusion Middleware Core component) lets an unauthenticated attacker with TCP network access fully compromise affected servers (versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0), disclosed in the Oracle Critical Patch Update of July 2026. The flaw carries a CVSS 3.1 base score of 9.8 with full confidentiality, integrity and availability impact and is rated 'easily exploitable' by Oracle, meaning no credentials or user interaction are required. No public exploit identified at time of analysis and the CVE is not listed in CISA KEV, but the trivial exploitation profile makes it a high-priority patching target.

RemediationAI

Patch available per vendor advisory: apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html) for the affected Coherence releases 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0, identifying the exact patch bundle for your release from the CPU patch-availability matrix (Oracle does not publish standalone fixed version numbers). Until patching completes, restrict network reachability of Coherence TCMP cluster ports and the Coherence*Extend proxy TCP listener to trusted management segments via firewall/security-group rules - trade-off: this breaks legitimate remote Extend clients and cross-host clustering, so scope rules to known client IPs. Where supported, enable Coherence transport security/TLS and authentication on the Extend proxy, disable any anonymous or unauthenticated proxy listeners, and never expose a Coherence port to the internet. These are compensating controls only; the vendor patch is the sole complete fix.

Affected VersionsENISA

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

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 distributed in-memory data grid and caching platform bundled with Oracle Fusion Middleware, used to scale application state and clustering across nodes. Cluster members and Coherence*Extend clients communicate over TCP (TCMP transport and the Extend proxy listener), and the affected 'Core' component processes this traffic before authentication. Oracle assigned no CWE (listed N/A), but an unauthenticated, network-reachable TCP vector leading to full takeover is historically consistent with unsafe deserialization of untrusted data in the Coherence protocol/proxy layer, the same root-cause class as prior Coherence RCE issues - this is inferred, not confirmed, since Oracle CPU advisories do not publish CWE mappings or technical root-cause detail. The CPE cpe:2.3:a:oracle_corporation:oracle_coherence:*:*:*:*:*:*:*:* identifies the product but does not encode the specific affected version ranges.

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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

Unauthenticated TCP-reachable pre-auth listener with low complexity and full takeover yields AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H, matching Oracle's assessment.

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 core enterprise middleware component, has a critical remote access vulnerability (CVE-2026-60288) that allows attackers to take complete control of affected systems without needing valid credentials or user interaction. Because no patch is currently available from Oracle, organizations running versions 12.2.1.4.0 through 15.1.1.0.0 must immediately isolate these systems from untrusted networks to prevent data breach and operational shutdown. Leadership should expect this to require significant network reconfiguration and close coordination with Oracle until patches are released.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: implement network segmentation restricting TCP access to Coherence instances from external networks; disable Coherence services on systems where operationally feasible; deploy intrusion detection rules for Coherence exploitation patterns; establish backup and recovery procedures for rapid response to compromise; monitor Oracle's Critical Patch Update schedule for patch availability.

Threat Intelligence Overview

EPSS Score
0.5%
Top 61% exploitable
Prevalence
Medium
enterprise in-memory data grid, common in large Oracle middleware shops
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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