CVE-2026-70756: Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. in Oracle Corporation Oracle WebLogic Server
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
AI Analysis
Technical Summary
This vulnerability affects Oracle WebLogic Server versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. It allows an unauthenticated attacker with network access via the T3 or IIOP protocols to compromise the server, potentially leading to full takeover. The CVSS 3.1 base score is 9.8, indicating critical severity with high impact on confidentiality, integrity, and availability. Oracle has included a fix for this vulnerability in its September 2026 Critical Security Patch Update, which contains 673 security patches across multiple products. Oracle strongly recommends applying these patches without delay to prevent exploitation.
Potential Impact
The vulnerability allows unauthenticated remote attackers to fully compromise Oracle WebLogic Server, resulting in complete loss of confidentiality, integrity, and availability of the affected system. This could lead to unauthorized access, data breaches, and disruption of services.
Mitigation Recommendations
Oracle has released a Critical Security Patch Update in September 2026 that includes a fix for this vulnerability. Customers should apply the relevant patches for Oracle WebLogic Server versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 as soon as possible. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed as fixed in the September 2026 Critical Security Patch Update. No additional mitigations are specified beyond patching.
CVE-2026-70756: Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. in Oracle Corporation Oracle WebLogic Server
Description
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
CVSS v3.1
Score 9.8critical
Affected software
Oracle Corporation
Oracle WebLogic Server
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Oracle WebLogic Server versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. It allows an unauthenticated attacker with network access via the T3 or IIOP protocols to compromise the server, potentially leading to full takeover. The CVSS 3.1 base score is 9.8, indicating critical severity with high impact on confidentiality, integrity, and availability. Oracle has included a fix for this vulnerability in its September 2026 Critical Security Patch Update, which contains 673 security patches across multiple products. Oracle strongly recommends applying these patches without delay to prevent exploitation.
Potential Impact
The vulnerability allows unauthenticated remote attackers to fully compromise Oracle WebLogic Server, resulting in complete loss of confidentiality, integrity, and availability of the affected system. This could lead to unauthorized access, data breaches, and disruption of services.
Mitigation Recommendations
Oracle has released a Critical Security Patch Update in September 2026 that includes a fix for this vulnerability. Customers should apply the relevant patches for Oracle WebLogic Server versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 as soon as possible. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed as fixed in the September 2026 Critical Security Patch Update. No additional mitigations are specified beyond patching.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-04T22:06:34.595Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","vendor":"Oracle"}]
Threat ID: 6aa9a7fc55bf5e2cf5537bf8
Added to database: 09/15/2026, 20:18:04 UTC
Last enriched: 09/15/2026, 22:30:06 UTC
Last updated: 09/16/2026, 04:01:23 UTC
Views: 5
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