Live › vulnerability › CVE-2026-83399
Go to dashboardUnauthenticated remote takeover of WebLogic Server Core via T3 or IIOP (CVSS 9.8, CWE-306). Affects 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0. Fixed by the October 2026 Critical Patch Update. No known exploitation or public PoC yet, but WebLogic T3/IIOP bugs are historically weaponized quickly.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Oracle WebLogic Server | vendor | 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0 | October 2026 CPU PSU 40069416 (12.2.1.4.0), 40069954 (14.1.1.0.0), 40058371 (14.1.2.0.0), 40050052 (15.1.1.0.0) |
java weblogic.version or opatch lspatches in the WebLogic ORACLE_HOME and compare with the October 2026 PSU12.2.1.4.0 -> 40069416; 14.1.1.0.0 -> 40069954; 14.1.2.0.0 -> 40058371; 15.1.1.0.0 -> 40050052 (PSU numbers per Rapid7)Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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).
This page as .md · .json · in your agent: get_signal("CVE-2026-83399")
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.