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Oracle Coherence CVE-2026-60250

| EUVDEUVD-2026-46665 CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-07-21 oracle GHSA-w848-r93p-w2vj
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 exposed Coherence TCP port
  2. Delivery
    Send crafted request to Core listener
  3. Exploit
    Exploit unauthenticated flaw
  4. Execution
    Achieve node takeover
  5. Impact
    Compromise 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.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – 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

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

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 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

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 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.

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 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.

Business Impact: Severe
Compensating Controls

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

EPSS Score
0.4%
Top 72% exploitable
Prevalence
Medium
enterprise Java in-memory data grid, common in Oracle middleware shops
Data Quality
5 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 0.4%
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
Out-of-Cycle
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
Very High
Technical Impact
Total

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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