CVE-2021-2028

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.21 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://security.gentoo.org/glsa/202105-27Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210219-0003/Third Party Advisory
• https://www.oracle.com/security-alerts/cpujan2021.htmlVendor Advisory
• https://security.gentoo.org/glsa/202105-27Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210219-0003/Third Party Advisory
• https://www.oracle.com/security-alerts/cpujan2021.htmlVendor Advisory

Published

Jan 20, 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-2021-20274A flaw was found in privoxy before 3.0.32. A crash may occur…7.5
• CVE-2021-20275A flaw was found in privoxy before 3.0.32. A invalid read of…7.5
• CVE-2021-20276A flaw was found in privoxy before 3.0.32. Invalid memory ac…7.5
• CVE-2021-20277A flaw was found in Samba's libldb. Multiple, consecutive le…7.5
• CVE-2021-20278An authentication bypass vulnerability was found in Kiali in…6.5
• CVE-2021-20279The ID number user profile field required additional sanitiz…5.4
• CVE-2021-20280Text-based feedback answers required additional sanitizing t…5.4
• CVE-2021-20281It was possible for some users without permission to view ot…5.3
• CVE-2021-20282When creating a user account, it was possible to verify the …5.3
• CVE-2021-20283The web service responsible for fetching other users' enroll…4.3
• CVE-2021-20284A flaw was found in GNU Binutils 2.35.1, where there is a he…5.5
• CVE-2021-20285A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96.…6.6