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MySQL Connector/Net CVE-2026-60193

| EUVDEUVD-2026-46599 HIGH
Improper Access Control (CWE-284)
2026-07-21 oracle GHSA-375g-qwp7-p447
8.5
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
    Gain low-privileged network position to connector
  2. Delivery
    Interpose on or control MySQL endpoint
  3. Exploit
    Deliver crafted protocol response
  4. Execution
    Trigger connector flaw (AC:H)
  5. Persist
    Take over connector context
  6. Impact
    Pivot via scope change to host application

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

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

Exploitation Conditions

Exploitation requires the low-privileged attacker to have network reach to the vulnerable connector over one of the multiple supported MySQL protocols (PR:L confirms some pre-existing privilege is needed; per CVSS this is authenticated). The high attack complexity (AC:H) means success is conditional on hard-to-control factors - Oracle labels it 'difficult to exploit' - likely requiring the attacker to control or interpose on the database endpoint the connector communicates with so it can return crafted protocol data to the client. Limiting factors: only Connector/Net versions 9.7.0 and 9.7.1 are affected; the target must be a .NET application actually using this connector; and the attacker must both hold low-level privileges and win the high-complexity condition, which together make opportunistic mass exploitation unlikely.

Impact

Signals here are mixed and warrant nuance. The CVSS 3.1 score of 8.5 is HIGH and driven largely by the scope change (S:C) plus full C:H/I:H/A:H impact, but two metrics substantially temper real-world risk: AC:H (Oracle explicitly calls it 'difficult to exploit') and PR:L (the attacker must already hold some low-level privilege). No EPSS score was provided, so exploitation probability cannot be quantified. It is NOT in CISA KEV (no confirmed active exploitation) and no POC was supplied, so this is best treated as a real but non-emergency priority - patch on a normal CPU cadence rather than as an out-of-band fire drill. One tension to verify with Oracle: AV:N implies a network vector, yet a client-side connector is typically attacked by a malicious or compromised server/peer it talks to, so 'network access' realistically means the attacker controls or interposes on the database endpoint the connector reaches - confirm the exact attack surface before finalizing exposure assumptions.

Exploit ScenarioDerived

An attacker who controls or can intercept a MySQL endpoint that a vulnerable .NET application connects to - via a compromised database host, a rogue server, or a man-in-the-middle position - returns crafted protocol responses that trigger the connector flaw, taking over the connector's execution context within the client application. Because of the scope change, this foothold can be leveraged to impact resources beyond the connector, such as the host application and its data. No public POC is available, and the high attack complexity means the attacker must satisfy specific timing or configuration preconditions to succeed.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 21, 2026

Full takeover of Oracle MySQL Connector/Net (versions 9.7.0 and 9.7.1) is possible by a low-privileged network attacker who wins a high-complexity attack, with a scope change that lets the compromise significantly impact products beyond the connector itself. Oracle rates this CVSS 3.1 8.5 with high confidentiality, integrity, and availability impact, and it is addressed in the July 2026 Critical Patch Update. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

RemediationAI

Upgrade MySQL Connector/Net to the fixed release delivered in the Oracle July 2026 Critical Patch Update; consult https://www.oracle.com/security-alerts/cpujul2026.html for the exact patched version, as the specific fix build is not enumerated in the available data (Patch available per vendor advisory - released patched version not independently confirmed here). Because the vulnerability is client-side, rebuild and redeploy every .NET application that bundles the affected 9.7.0/9.7.1 connector rather than only patching database servers. Until patched, reduce exposure by ensuring applications connect only to trusted, authenticated MySQL endpoints over TLS (preventing a rogue or man-in-the-middle server from delivering a malicious response), restricting outbound database connectivity to known hosts via network egress rules, and running the application process with least privilege to blunt the scope-change impact; the trade-off is that strict endpoint pinning and egress filtering can break legitimate dynamic or multi-tenant database connectivity and must be tested against your deployment topology.

Affected VersionsENISA

MySQL Connectors 9.7.0 ≤9.7.1

Affected Packages

euvd mysql_connectors 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

MySQL Connector/Net is Oracle's official ADO.NET-compatible data provider used by .NET/C

applications to connect to MySQL and MySQL-compatible databases. The flaw lives in the client-side connector library rather than the MySQL server, so the trust boundary crossed is the application process embedding the driver. The scope-change flag (S:C) in the CVSS vector indicates that exploiting the connector can affect resources beyond the vulnerable component's own security authority - for example the host application, other libraries, or downstream data consumers. No CWE was assigned in the source data, so the precise weakness class (e.g., deserialization, injection, or memory-safety in wire-protocol parsing) cannot be confirmed from the available intelligence; the 'multiple protocols' phrasing suggests more than one transport/authentication path can reach the vulnerable code.

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Severity by source

Vendor (oracle) PRIMARY 8.5 HIGH
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
vuln.today AI 8.5 HIGH

Concur with Oracle: network-reachable but hard to exploit (AC:H) requiring some privilege (PR:L), no user interaction, and a scope change enabling full C/I/A takeover impacting other components.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/Net). Supported versions that are affected are 9.7.0-9.7.1. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Connectors. While the vulnerability is in MySQL Connectors, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of MySQL Connectors. CVSS 3.1 Base Score 8.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H).

Executive ViewAI

Why It Matters

Oracle MySQL Connector/Net versions 9.7.0 and 9.7.1 contain a critical vulnerability enabling complete system takeover by low-privileged network attackers, exposing affected organizations to unauthorized access, data theft, and operational disruption. The vulnerability's scope change means compromise extends beyond the connector itself to impact dependent applications and infrastructure. Any organization using these versions faces material risk to confidentiality, integrity, and availability.

Business Impact: High
Compensating Controls

Apply Oracle July 2026 Critical Patch Update immediately. Pending patch deployment, restrict network-level access to affected systems to trusted hosts and low-privileged user accounts, monitor authentication logs for exploitation attempts, and disable the connector where business operations permit.

Threat Intelligence Overview

EPSS Score
0.3%
Top 81% exploitable
Prevalence
High
official ADO.NET MySQL driver widely used across .NET application stacks
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 0.3%
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· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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