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6.5

MySQL Server crashes if attacked

CVE-2021-2298 · published 5 years ago
Summary

If an attacker exploits this vulnerability, they can cause your MySQL Server to crash repeatedly or become unresponsive. This could happen if an attacker gains access to your MySQL Server from the internet. To protect your system, you should upgrade to a version of MySQL Server that is not affected by this vulnerability.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
oracle mysql >= 8.0.0, <= 8.0.23
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
netapp active_iq_unified_manager All versions
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
netapp oncommand_insight All versions
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
netapp oncommand_workflow_automation All versions
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
netapp snapcenter All versions
cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:*
Original advisory text
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.23 and prior. Easily exploitable vulnerability allows low priv...
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.23 and prior. Easily exploitable 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
6.5 Medium
Exploitation
1% chance of attack within 30 days
Timeline
Published22 Apr 2021
Updated3 Nov 2026
First seen9 Jul 2026
Sources
CVE-2021-2298 · OSV
CVE-2021-2298 · NVD
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