CVE-2026-70756: Oracle WebLogic Server remote code execution in T3/IIOP

CVE-2026-70756 · Severity: critical · CVSS 9.8 · Published 2026-09-15

Oracle WebLogic Server is a Java application server used to host enterprise applications and services. An unauthenticated attacker on the network can exploit a flaw in the core component via T3 or IIOP protocols to gain complete control of the server, potentially compromising all data and applications running on it and disrupting business operations.

Technologies: Oracle WebLogic Server. Vendors: Oracle.

Quick answers

Is CVE-2026-70756 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-70756 being exploited in the wild.
How severe is CVE-2026-70756?
Critical severity, with a CVSS score of 9.8, published 15 September 2026.
Which products and versions are affected?
Oracle WebLogic Server 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0.
Is there a fix for CVE-2026-70756?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-70756 attacked?
It is attacked over the network.
Am I affected by CVE-2026-70756?
Check whether you run Oracle WebLogic Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is an unauthenticated remote code execution flaw in the Core component of Oracle WebLogic Server, exploitable via the T3 (Proprietary Oracle) or IIOP (CORBA) network protocols. No authentication or user interaction is required; a network-accessible attacker can directly trigger the vulnerability. Successful exploitation results in complete takeover of the WebLogic Server instance, granting an attacker the ability to execute arbitrary code, steal sensitive data, modify applications, and disrupt service availability. The affected versions are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. Patch availability from Oracle has not been confirmed in the provided advisory.

Affected products

  • Oracle WebLogic Server 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0

Timeline

  • 2026-09-15: disclosed: CVE-2026-70756 published

References

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