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Mysql Router CVE-2026-60314

| EUVDEUVD-2026-46729 HIGH
Uncontrolled Resource Consumption (CWE-400)
2026-07-21 oracle GHSA-mcf6-cwjw-4hq9
7.5
CVSS 3.1 · Vendor: oracle
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource consumption limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 21, 2026

Denial-of-service in Oracle MySQL Router (versions 8.4.0-8.4.10 and 9.7.0-9.7.1) allows a remote unauthenticated attacker to send crafted HTTP traffic that hangs or repeatedly crashes the Router process, causing a complete availability outage. The flaw is rated CVSS 7.5 with only availability impact (no data confidentiality or integrity loss) and is described by Oracle as 'easily exploitable.' As of this analysis there is no public exploit identified and it is not listed in CISA KEV; the fix ships in Oracle's July 2026 Critical Patch Update.

Affected VersionsENISA

MySQL Router 9.7.0 ≤9.7.1
MySQL Router 8.4.0 ≤8.4.10

Affected Packages

euvd mysql_router 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.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (oracle) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from Vendor (oracle) · only source for this CVE.

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.10 and 9.7.0-9.7.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Executive ViewAI

Why It Matters

Oracle MySQL Router versions 8.4.0-8.4.10 and 9.7.0-9.7.1 contain a high-severity remote denial-of-service vulnerability that allows unauthenticated attackers to crash or hang the Router process, causing complete database routing outages. Organizations using these versions face immediate risk of application downtime affecting mission-critical database operations. A patch is expected in Oracle's July 2026 Critical Patch Update.

Recommended Action

Within 24 hours, identify and prioritize all systems running Oracle MySQL Router versions 8.4.0-8.4.10 or 9.7.0-9.7.1 by business criticality. Within 7 days, implement network rate limiting and HTTP request filtering on affected routers, establish rapid incident response procedures for Router restarts, and establish a tracking mechanism for the July 2026 CPU release. Within 30 days, apply the July 2026 Critical Patch Update immediately upon availability to all affected systems.

Business Impact: High
Compensating Controls

No vendor-released patch currently available. Interim mitigations: restrict network access to Router HTTP interfaces via firewall rules and network segmentation, implement HTTP rate limiting and malformed request detection to block potential DoS traffic, configure Web Application Firewall rules to detect HTTP flood patterns, establish rapid-restart and failover procedures, implement continuous monitoring and alerting on Router process availability, and maintain communication with Oracle for CPU release timeline. Apply vendor patch immediately upon July 2026 CPU release.

Threat Intelligence Overview

EPSS Score
0.4%
Top 72% exploitable
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 HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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