CVE-2026-70757: 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 T3 or IIOP protocols to compromise the server, potentially leading to full takeover. The CVSS 3.1 score is 9.8 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, reflecting the ease of exploitation and severe impact. Oracle has included a fix for this vulnerability in their September 2026 Critical Security Patch Update, which contains 673 new security patches across multiple products. The vendor strongly recommends applying these patches without delay to prevent exploitation.
Potential Impact
Successful exploitation can result in complete compromise of Oracle WebLogic Server, impacting confidentiality, integrity, and availability. This allows attackers to take over the server without authentication, posing a critical risk to affected environments.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Customers should apply the relevant patches for their Oracle WebLogic Server versions immediately. Oracle strongly recommends staying on actively supported versions and applying security patches promptly to mitigate this and other vulnerabilities. No alternative mitigations or workarounds are indicated in the vendor advisory.
CVE-2026-70757: 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 T3 or IIOP protocols to compromise the server, potentially leading to full takeover. The CVSS 3.1 score is 9.8 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, reflecting the ease of exploitation and severe impact. Oracle has included a fix for this vulnerability in their September 2026 Critical Security Patch Update, which contains 673 new security patches across multiple products. The vendor strongly recommends applying these patches without delay to prevent exploitation.
Potential Impact
Successful exploitation can result in complete compromise of Oracle WebLogic Server, impacting confidentiality, integrity, and availability. This allows attackers to take over the server without authentication, posing a critical risk to affected environments.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Customers should apply the relevant patches for their Oracle WebLogic Server versions immediately. Oracle strongly recommends staying on actively supported versions and applying security patches promptly to mitigate this and other vulnerabilities. No alternative mitigations or workarounds are indicated in the vendor advisory.
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: 6aa9a7fc55bf5e2cf5537bf9
Added to database: 09/15/2026, 20:18:04 UTC
Last enriched: 09/15/2026, 22:30:11 UTC
Last updated: 09/16/2026, 04:01:23 UTC
Views: 5
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