# CVE-2026-70748: Oracle WebLogic Server remote code execution in Core

Source: https://junglewise.ai/threats/cve-2026-70748-oracle-weblogic-server-remote-code-execution-in-core  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-70748 · Severity: critical · CVSS 9.8 · Published 2026-09-15

Oracle WebLogic Server is a Java application server used to host enterprise applications and services. A critical vulnerability in its core component allows remote attackers without credentials to gain complete control over the server, enabling them to steal data, modify applications, or disrupt business operations. The flaw is easily exploitable over the network and requires no user interaction.

Technologies: [Oracle WebLogic Server](https://junglewise.ai/threats/technologies/weblogic-server). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-70748 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-70748 being exploited in the wild.

**How severe is CVE-2026-70748?** 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-2026-70748?** 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-2026-70748 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-70748?** 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 in Oracle WebLogic Server's Core component allows unauthenticated remote code execution via the T3 and IIOP protocols. The flaw is easily exploitable with no authentication required, no complex configuration, and no user interaction necessary. Attackers with network access can exploit this to achieve complete compromise of the WebLogic Server, resulting in confidentiality, integrity, and availability impacts. Affected versions are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. Patches should be available through Oracle's standard security update channels.

## 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

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle WebLogic Server data modification and DoS in Core](https://junglewise.ai/threats/cve-2026-91502-vulnerability-in-the-oracle-weblogic-server-product-of-oracle)
- [Oracle WebLogic Server remote code execution in Core](https://junglewise.ai/threats/cve-2026-91323-vulnerability-in-the-oracle-weblogic-server-product-of-oracle)
- [Oracle WebLogic Server unauthorized data access in Core](https://junglewise.ai/threats/cve-2026-87302-vulnerability-in-the-oracle-weblogic-server-product-of-oracle)
- [Oracle WebLogic Server remote code execution in Core](https://junglewise.ai/threats/cve-2026-83399-vulnerability-in-the-oracle-weblogic-server-product-of-oracle)
- [Oracle WebLogic Server information disclosure in third-party jars](https://junglewise.ai/threats/cve-2026-101515-vulnerability-in-the-oracle-weblogic-server-product-of-oracle)