VDB
CVE-2026-83347
CVE-2026-83347
PUBLISHED
CVSS 6.5 MEDIUM
Reported by oracle · Published September 15, 2026
Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCPS to compromise Oracle Net Services. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).
EPSS 0.36% · 29.0th percentile
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score
0.36%
29.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oracle Corporation | Oracle Database Server | 23.4.0 |
| Oracle Corporation | Oracle Database Server | 23.4.0 |
| oracle | database_-_e_net_services | 23.4.0 |
Timeline
- Sep 15, 2026 CVE Published
- Sep 16, 2026 EPSS Score
- Sep 16, 2026 Coalition ESS Score
References
- Oracle Advisory vendor-advisory