OracleCVE-2026-83271
Oracle Database Server: improper privilege management
High8.8CVE-2026-83271 · Published Sep 15, 2026 · updated Sep 17, 2026
Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Easily exploitable vulnerability allows low privileged attacker having Execute on DBMS_REDEFINITION privilege with network access via Oracle Net to compromise RDBMS. Successful attacks of this vulnerability can result in takeover of RDBMS. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Oracle Database Server Product | >= 19.3, <= 19.32 | No fix yet |
| >= 21.3, <= 21.23 | No fix yet | |
| >= 23.4.0, <= 23.26.3 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-269
More Oracle advisories
All Oracle| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 15 | Oracle GraalVM for JDK: takeover via Compiler | High8.1 | No fix yet |
| Sep 15 | Oracle GraalVM for JDK: data tampering via Compiler | High7.0 | No fix yet |
| Sep 15 | Oracle GraalVM for JDK: takeover via Compiler | High8.1 | No fix yet |
| Sep 15 | Oracle VM VirtualBox: flaw in Core | Low3.2 | No fix yet |
| Sep 15 | Oracle VM VirtualBox: denial of service via Core | Medium6.0 | No fix yet |
| Sep 15 | Oracle GraalVM: takeover via Compiler | High8.1 | No fix yet |