CVE-2021-2390

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 5.7.34 and prior and 8.0.25 and prior. Difficult to exploit vulnerability allows unauthenticated 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 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

• CWE-191

• https://security.netapp.com/advisory/ntap-20210723-0001/Third Party Advisory
• https://www.oracle.com/security-alerts/cpujul2021.htmlVendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-21-881/Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210723-0001/Third Party Advisory
• https://www.oracle.com/security-alerts/cpujul2021.htmlVendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-21-881/Third Party 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-2021-23893Privilege Escalation vulnerability in a Windows system drive…7.8
• CVE-2021-23894Deserialization of untrusted data vulnerability in McAfee Da…8.8
• CVE-2021-23895Deserialization of untrusted data vulnerability in McAfee Da…8
• CVE-2021-23896Cleartext Transmission of Sensitive Information vulnerabilit…4.5
• CVE-2021-23897Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
• CVE-2021-23899OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT ta…9.8
• CVE-2021-23900OWASP json-sanitizer before 1.2.2 can output invalid JSON or…7.5
• CVE-2021-23901An XML external entity (XXE) injection vulnerability was dis…9.1
• CVE-2021-23906An issue was discovered in the Headunit NTG6 in the MBUX Inf…6.8
• CVE-2021-23907An issue was discovered in the Headunit NTG6 in the MBUX Inf…9.8
• CVE-2021-23908An issue was discovered in the Headunit NTG6 in the MBUX Inf…9.8
• CVE-2021-23909An issue was discovered in HERMES 2.1 in the MBUX Infotainme…9.8