---
id: "CVE-2018-2628"
kind: "vulnerability"
aliases: ["CVE-2018-2628"]
title: "Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Core Components)"
severity: "critical"
cvss: 9.8
epss: 0.99958
exploited: true
status: "open"
category: "runtime"
products: [{"name": "Oracle WebLogic Server", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "oracle weblogic server", "fixed": [], "affected": "= 10.3.6.0.0", "ecosystem": "vendor"}, {"name": "oracle weblogic server", "fixed": [], "affected": "= 12.1.3.0.0", "ecosystem": "vendor"}, {"name": "oracle weblogic server", "fixed": [], "affected": "= 12.2.1.2.0", "ecosystem": "vendor"}, {"name": "oracle weblogic server", "fixed": [], "affected": "= 12.2.1.3", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "java", "oracle", "runtime", "self-hosted", "weblogic"]
not_affected_if: ["t3-port-not-exposed"]
published_at: "2018-04-19T02:29:00+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-2628", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2018-2628", "first_seen_at": "2026-10-23T19:13:45+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-2628", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Core Components)

Oracle WebLogic Server has an unspecified flaw reachable over the T3 protocol. An unauthenticated attacker with network access to T3 can compromise the server.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Oracle WebLogic Server affected ? fixed ?
- vendor:oracle weblogic server affected = 10.3.6.0.0 fixed ?
- vendor:oracle weblogic server affected = 12.1.3.0.0 fixed ?
- vendor:oracle weblogic server affected = 12.2.1.2.0 fixed ?
- vendor:oracle weblogic server affected = 12.2.1.3 fixed ?

## Fix

Apply the Oracle security updates for WebLogic Server per vendor instructions; specific patched versions are not stated in the sources.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-2628
- 2026-10-23T19:13:45+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2018-2628
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2018-2628

## From the sources

Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Core Components). Supported versions that are affected are 10.3.6.0, 12.1.3.0, 12.2.1.2 and 12.2.1.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

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