7.5
High
CVE-2026-83349 Vulnerability in the Oracle Net Services component of Oracle Database Server
Description
Vulnerability in the Oracle Net Services 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 unauthenticated attacker with network access via Oracle Net to compromise Oracle Net Services. 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 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Oracle Database Server 23.4 | 23.4.0 → 23.26.3 | No fix stated |
| Oracle Database Server 21.3 | 21.3 → 21.23 | No fix stated |
| Oracle Database Server 19.3 | 19.3 → 19.32 | No fix stated |
References
- Oracle Advisory www.oracle.com
Timeline
- Published
- Last modified
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