Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 19.3-19.31, 21.3-21.22 and 23.4.0-23.26.2. 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 access to critical data or complete access to all Oracle Net Services accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. CVSS 3.1 Base Score 9.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H).
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oracle Corporation | Oracle Net Services | affected |
|
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Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
| Link | Providers |
|---|---|
| https://www.oracle.com/security-alerts/cpujul2026.html |
|
History
Tue, 21 Jul 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 19.3-19.31, 21.3-21.22 and 23.4.0-23.26.2. 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 access to critical data or complete access to all Oracle Net Services accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. CVSS 3.1 Base Score 9.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H). | |
| First Time appeared |
Oracle
Oracle net Services |
|
| CPEs | cpe:2.3:a:oracle:net_services:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Oracle
Oracle net Services |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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MITRE
Status: PUBLISHED
Assigner: oracle
Published:
Updated: 2026-07-21T21:33:11.302Z
Reserved: 2026-05-18T15:55:10.318Z
Link: CVE-2026-47040
Vulnrichment
No data.
NVD
No data.
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses
No weakness.