CVE-2021-35551

Vulnerability in the RDBMS Security component of Oracle Database Server. Supported versions that are affected are 12.2.0.1, 19c and 21c. Easily exploitable vulnerability allows high privileged attacker having DBA privilege with network access via Oracle Net to compromise RDBMS Security. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of RDBMS Security as well as unauthorized update, insert or delete access to some of RDBMS Security accessible data. CVSS 3.1 Base Score 5.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H).

• https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Vendor Advisory
• https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Vendor Advisory

Published

Oct 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-2021-35543Vulnerability in the PeopleSoft Enterprise CC Common Applica…8.1
• CVE-2021-35545Vulnerability in the Oracle VM VirtualBox product of Oracle …6.7
• CVE-2021-35546Vulnerability in the MySQL Server product of Oracle MySQL (c…4.9
• CVE-2021-35549Vulnerability in the Oracle Solaris product of Oracle System…3.9
• CVE-2021-3555A Buffer Overflow vulnerability in the RSTP server component…8.8
• CVE-2021-35550Vulnerability in the Java SE, Oracle GraalVM Enterprise Edit…5.9
• CVE-2021-35552Vulnerability in the Oracle WebLogic Server product of Oracl…5.3
• CVE-2021-35553Vulnerability in the PeopleSoft Enterprise CS Student Record…6.5
• CVE-2021-35554Vulnerability in the Oracle Trade Management product of Orac…5.3
• CVE-2021-35556Vulnerability in the Java SE, Oracle GraalVM Enterprise Edit…5.3
• CVE-2021-35557Vulnerability in the Core RDBMS component of Oracle Database…4.3
• CVE-2021-35558Vulnerability in the Core RDBMS component of Oracle Database…4.3