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EPSS 0.2%top 94%

CVE-2026-71084: Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where MySQL Connectors executes to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors and unauthorized read access to a subset of MySQL Connectors accessible data. in Oracle Corporation MySQL Connectors

0
Medium
Published: 08/18/2026 (08/18/2026, 21:03:26 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: MySQL Connectors

Description

CVE-2026-71084 is a vulnerability in Oracle MySQL Connectors, specifically affecting version 26.7.0 of Connector/ODBC. It allows an unauthenticated attacker with logon access to the infrastructure where MySQL Connectors run to cause a denial of service (hang or repeated crash) and unauthorized read access to some accessible data. The CVSS 3.1 base score is 6.8, indicating a medium severity with impacts on confidentiality and availability.

CVSS v3.1

Score 6.8medium

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected software

Oracle Corporation

MySQL Connectors

Affected versions
=26.7.0
com.mysql/mysql-connector-odbc
pkg:maven/com.mysql/mysql-connector-odbc
Affected versions
=26.7.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/11/2026, 12:19:06 UTC

Technical Analysis

This vulnerability in Oracle MySQL Connectors (Connector/ODBC component) version 26.7.0 permits an unauthenticated attacker who has logon access to the infrastructure hosting the connectors to compromise the MySQL Connectors. Exploitation can lead to a complete denial of service by causing hangs or repeated crashes and unauthorized read access to a subset of data accessible through the connectors. The CVSS vector indicates local attack vector with low complexity, no privileges required, no user interaction, and impacts confidentiality (low) and availability (high).

Potential Impact

Successful exploitation allows an attacker to cause a complete denial of service of MySQL Connectors and gain unauthorized read access to some data accessible by the connectors. This impacts the availability and confidentiality of the affected system component but does not affect integrity.

Mitigation Recommendations

Oracle has released a Critical Security Patch Update that addresses this vulnerability. Customers are strongly advised to apply the available security patches without delay to remediate this issue. The vendor advisory does not indicate any 'no action required' status; therefore, patching is the recommended mitigation. Refer to the Oracle Critical Security Patch Update advisory dated August 2026 for patch availability and installation instructions.

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Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-08-04T22:06:34.616Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]

Threat ID: 6a84cccdc6e8be0332c38fd0

Added to database: 08/18/2026, 21:21:17 UTC

Last enriched: 09/11/2026, 12:19:06 UTC

Last updated: 10/02/2026, 02:46:06 UTC

Views: 41

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