CVE-2026-70757

Analyzed Analyzed - Analysis Complete

Oracle WebLogic Server Remote Code Execution

Publication date: 2026-09-15

Last updated on: 2026-09-28

Assigner: Oracle

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 Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-28

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-70757

EUVD

EUVD-2026-79512

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	weblogic_server	12.2.1.4.0
oracle	weblogic_server	14.1.1.0.0
oracle	weblogic_server	14.1.2.0.0
oracle	weblogic_server	15.1.1.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This is a critical vulnerability in Oracle WebLogic Server that allows unauthenticated attackers to remotely compromise the server via T3 or IIOP protocols. Successful exploitation can lead to full server takeover with high impacts on confidentiality, integrity, and availability.

Detection Guidance

Detecting this vulnerability requires checking for vulnerable versions of Oracle WebLogic Server. Use commands like 'curl -v http://<target>:<port>/console' or 'nmap -p <port> --script oracle-weblogic-t3-info <target>' to identify exposed instances. Verify server version via WebLogic Admin Console or logs.

Impact Analysis

If you use affected versions of Oracle WebLogic Server (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0), an attacker could gain complete control over your server, leading to data breaches, service disruption, or unauthorized system access.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate GDPR (data protection) and HIPAA (health data security) requirements. Organizations must address this to maintain compliance and avoid penalties.

Mitigation Strategies

Immediately apply the latest Oracle WebLogic Server patches from Oracle's Critical Patch Update Advisory. Disable T3 and IIOP protocols if not required. Restrict network access to WebLogic ports using firewalls. Monitor for suspicious activity and update CVE-2026-70757 advisories regularly.

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