Vulnerability details
CVE-2026-83271
Oracle Database Server
CVSS 3.1
8.8High
Official description
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).
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (oracle) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Oracle Corporation | Oracle Database Server | 19.3 ≤ v ≤ 19.32 | CVEProject cvelistV5 (CNA) |
| Oracle Corporation | Oracle Database Server | 21.3 ≤ v ≤ 21.23 | CVEProject cvelistV5 (CNA) |
| Oracle Corporation | Oracle Database Server | 23.4.0 ≤ v ≤ 23.26.3 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://www.oracle.com/security-alerts/cspusep2026.html vendor-advisory
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Details
- Published
- 2026-09-15
- Last updated
- 2026-09-17
- State
- Published
- Assigner (CNA)
- oracle
Exploit prediction (EPSS)
0.41%
Probability of exploitation in 30 days
36.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-269Improper Privilege Management