CVE-2026-101771
Received
Received - Intake
Heap-based Buffer Overflow in MySQL Server
Vulnerability report for CVE-2026-101771, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-20
Last updated on: 2026-10-20
Assigner: Oracle
Description
Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Client programs). 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: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in takeover of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Oracle | Corporation | MySQL Server 8.4.0-8.4.12 |
| Oracle | Corporation | MySQL Server 9.7.0-9.7.3 |
| Oracle | Corporation | MySQL Server 26.7.0-26.7.1 |
| Oracle | Corporation | MySQL Cluster 8.0.0-8.0.49 |
| Oracle | Corporation | MySQL Cluster 8.4.0-8.4.12 |
| Oracle | Corporation | MySQL Cluster 9.7.0-9.7.3 |
| Oracle | Corporation | MySQL Cluster 26.7.0-26.7.1 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
