# CVE-2018-2628: Oracle WebLogic Server Unspecified Vulnerability

Source: https://junglewise.ai/threats/cve-2018-2628-oracle-weblogic-server-unspecified-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-09-08. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2018-2628 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-09-08

Oracle WebLogic Server contains a deserialization vulnerability in the WLS Core Components. An unauthenticated attacker with network access via the T3 protocol can exploit this flaw to achieve a complete takeover of the server.

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

## Quick answers

**Is CVE-2018-2628 exploited in the wild?** Yes. CVE-2018-2628 is known to be exploited in the wild, first recorded on 8 September 2022. Treat it as urgent.

**How severe is CVE-2018-2628?** Critical severity, with a CVSS score of 9.8, published 8 September 2022.

**Which products and versions are affected?** Oracle WebLogic Server 10.3.6.0, 12.1.3.0, 12.2.1.2, 12.2.1.3.

**Is there a fix for CVE-2018-2628?** 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-2018-2628 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2018-2628?** Check whether you run Oracle WebLogic Server. 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.

## Affected products

- Oracle WebLogic Server 10.3.6.0, 12.1.3.0, 12.2.1.2, 12.2.1.3

## Timeline

- 2018-04-17: advisory: Initial Oracle Critical Patch Update (CPU) advisory published.
- 2022-09-08: kev added: Added to CISA Known Exploited Vulnerabilities (KEV) Catalog.

## 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)