CVE-2026-21929
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-01-29

Assigner: Oracle

Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Parser). Supported versions that are affected are 9.0.0-9.5.0. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-01-20
Last Modified
2026-01-29
Generated
2026-06-16
AI Q&A
2026-01-21
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21929
EUVD
EUVD-2026-3580
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
oracle mysql_server From 9.0.0 (inc) to 9.5.0 (inc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-NVD-CWE-noinfo
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability exists in the MySQL Server's Parser component for versions 9.0.0 to 9.5.0. It is difficult to exploit but allows a low privileged attacker with network access through multiple protocols to cause the MySQL Server to hang or crash repeatedly, resulting in a denial of service (DoS).

Impact Analysis

The impact of this vulnerability is that an attacker could cause the MySQL Server to become unavailable by making it hang or crash repeatedly, leading to a complete denial of service. This affects the availability of the service but does not compromise confidentiality or integrity.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-21929. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart