CVE-2021-2339

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.0.25 and prior. 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).

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OO2Q5PIFURXLLKCIJE6XF6VL4LLMNO5/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPJAGVMRKODR4QIXQSVEM4BLRZUM7P3R/
• https://security.netapp.com/advisory/ntap-20210723-0001/Third Party Advisory
• https://www.oracle.com/security-alerts/cpujul2021.htmlPatch, Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OO2Q5PIFURXLLKCIJE6XF6VL4LLMNO5/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPJAGVMRKODR4QIXQSVEM4BLRZUM7P3R/
• https://security.netapp.com/advisory/ntap-20210723-0001/Third Party Advisory
• https://www.oracle.com/security-alerts/cpujul2021.htmlPatch, Vendor Advisory

Published

Jul 21, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-23384The package koa-remove-trailing-slashes before 2.0.2 are vul…5.4
• CVE-2021-23385This affects all versions of package Flask-Security. When us…6.1
• CVE-2021-23386This affects the package dns-packet before 5.2.2. It creates…6.5
• CVE-2021-23387The package trailing-slash before 2.0.1 are vulnerable to Op…6.1
• CVE-2021-23388The package forms before 1.2.1, from 1.3.0 and before 1.3.2 …5.3
• CVE-2021-23389The package total.js before 3.4.9 are vulnerable to Arbitrar…9.8
• CVE-2021-23390The package total4 before 0.0.43 are vulnerable to Arbitrary…9.8
• CVE-2021-23391This affects all versions of package calipso. It is possible…7.1
• CVE-2021-23392The package locutus before 2.0.15 are vulnerable to Regular …7.5
• CVE-2021-23393This affects the package Flask-Unchained before 0.9.0. When …5.4
• CVE-2021-23394The package studio-42/elfinder before 2.1.58 are vulnerable …9.8
• CVE-2021-23395This affects all versions of package nedb. The library could…5.3