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2 vulnerabilities found for Oracle Net Services by Oracle Corporation
CVE-2026-47040 (GCVE-0-2026-47040)
Vulnerability from nvd – Published: 2026-07-21 21:33 – Updated: 2026-07-23 15:37
VLAI
EPSS
VEX
Summary
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).
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 15:36 UTC
CWE
- 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.
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujul2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | Oracle Net Services |
Affected:
19.3 , ≤ 19.31
(custom)
Affected: 21.3 , ≤ 21.22 (custom) Affected: 23.4.0 , ≤ 23.26.2 (custom) cpe:2.3:a:oracle:net_services:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:net_services:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:net_services:*:*:*:*:*:*:*:* |
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CVE-2026-47040 (GCVE-0-2026-47040)
Vulnerability from cvelistv5 – Published: 2026-07-21 21:33 – Updated: 2026-07-23 15:37
VLAI
EPSS
VEX
Summary
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).
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 15:36 UTC
CWE
- 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.
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujul2026.html | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | Oracle Net Services |
Affected:
19.3 , ≤ 19.31
(custom)
Affected: 21.3 , ≤ 21.22 (custom) Affected: 23.4.0 , ≤ 23.26.2 (custom) cpe:2.3:a:oracle:net_services:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:net_services:*:*:*:*:*:*:*:* cpe:2.3:a:oracle:net_services:*:*:*:*:*:*:*:* |
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