CVE-2026-34293: Medium severity Oracle MySQL Server vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 8.0.0-8.0.45. Easily exploitable vulnerability allows high 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Restrict network access to MySQL Server to only trusted hosts/networks and block untrusted protocols and ports. Implement network-level ACLs, firewall rules, or host-based firewalling to prevent external or unnecessary access until a vendor fix is available.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34293?
CVE-2026-34293 is classified as an easily exploitable vulnerability that allows high privileged attackers to compromise MySQL Server.
How do I fix CVE-2026-34293?
To fix CVE-2026-34293, update your MySQL Server to a version later than 8.0.45.
Who is affected by CVE-2026-34293?
CVE-2026-34293 affects users of Oracle MySQL Server versions 8.0.0 to 8.0.45.
Can CVE-2026-34293 be exploited remotely?
Yes, CVE-2026-34293 can be easily exploited by an attacker with network access via multiple protocols.
What components are involved in CVE-2026-34293?
CVE-2026-34293 impacts the Server: DML component of the Oracle MySQL product.