Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Telemetry). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 2.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).
Published: 2026-10-20
Score: 2.7 Low
EPSS: < 1% Very Low
KEV: No
Impact: Partial Denial of Service
Action: Assess Impact
AI Analysis

Impact

The vulnerability exists in the Telemetry component of Oracle MySQL Server and MySQL Cluster. A high privileged attacker who can reach the database over the network through any of its supported protocols can exploit the flaw and cause a partial denial of service. The impact is limited to availability; there is no compromise of confidentiality or integrity. The exploit does not grant code execution or unauthorized data access but interrupts database operations for legitimate users.

Affected Systems

Oracle Corporation’s MySQL Server and MySQL Cluster are affected. The vulnerable releases are MySQL Server 8.4.0 through 8.4.12, 9.7.0 through 9.7.3, and 26.7. through 26.7.1, as well as the same version ranges for MySQL Cluster.

Risk and Exploitability

The CVSS v3.1 base score of 2.7 indicates low severity. The EPSS score is < 1%, indicating a very low but non‑zero probability of exploitation, and the vulnerability is not listed in the CISA KEV catalog. Attacker requires network access and high privileges, and the attack vector is likely through the telemetry protocols. Given the partial service disruption only, the risk remains low unless an attacker targets the database for an extended denial of service attack.

Generated by OpenCVE AI on October 23, 2026 at 02:27 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade MySQL Server and MySQL Cluster to a newer version that includes the security fix.
  • Disable or limit telemetry functionality in the database configuration to reduce exposure to the flaw.
  • Continuously monitor database logs for abnormal telemetry traffic or unexpected service interruptions.

Generated by OpenCVE AI on October 23, 2026 at 02:27 UTC.

Tracking

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Advisories

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History

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Title Partial DoS via Telemetry in MySQL Server/Cluster mysql: mysql: Partial Denial of Service via Telemetry component
References
Metrics threat_severity

None

 threat_severity

Low

Thu, 22 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 21 Oct 2026 03:45:00 +0000

Type Values Removed Values Added
Title Partial DoS via Telemetry in MySQL Server/Cluster
Weaknesses CWE-400

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Telemetry). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 2.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).
First Time appeared Oracle
Oracle mysql Cluster
Oracle mysql Server
CPEs cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle mysql Cluster
Oracle mysql Server
References
Metrics cvssV3_1

{'score': 2.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L'}

Subscriptions

Oracle Mysql Cluster Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-22T17:22:01.942Z

Reserved: 2026-09-28T15:40:09.506Z

Link: CVE-2026-101779

cve-icon Vulnrichment

Updated: 2026-10-22T17:02:14.200Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-20T22:18:33.483

Modified: 2026-10-30T15:20:46.540

Link: CVE-2026-101779

cve-icon Redhat

Severity : Low

Publid Date: 2026-10-20T21:22:52Z

Links: CVE-2026-101779 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T02:30:15Z

Weaknesses
  • CWE-284

    Improper Access Control

  • CWE-400

    Uncontrolled Resource Consumption