Vulnerability details
CVE-2026-91503
Oracle Database Server
CVSS 3.1
8.1High
Official description
Vulnerability in the VPD 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 Create Table privilege with network access via Oracle Net to compromise VPD. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all VPD accessible data as well as unauthorized access to critical data or complete access to all VPD accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (oracle) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
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/cpuoct2026.html vendor-advisory
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Details
- Published
- 2026-10-21
- Last updated
- 2026-10-24
- State
- Published
- Assigner (CNA)
- oracle
Exploit prediction (EPSS)
0.24%
Probability of exploitation in 30 days
16.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-284Improper Access Control