CVE-2018-2628: Oracle WebLogic Server Unspecified Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 8 Sep 2022, 1,603 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 100%
EPSS score, percentile 100 of all scored records
- How severe?
- 9.8 Critical
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
CISA deadline 29 Sep 2022. Apply updates per vendor instructions.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- 10.3.6.0
- 12.1.3.0
- 12.2.1.2
- 12.2.1.3
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply updates per vendor instructions.
CISA due date for this action: 29 September 2022.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://www.oracle.com/security-alerts/cpuapr2018.html
- https://nvd.nist.gov/vuln/detail/CVE-2018-2628
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | 10.3.6.0 |
| Affected | 12.1.3.0 |
| Affected | 12.2.1.2 |
| Affected | 12.2.1.3 |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
Oracle WebLogic Server contains an unspecified vulnerability which can allow an unauthenticated attacker with T3 network access to compromise the server.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2018-2628 to its Known Exploited Vulnerabilities (KEV) catalog on 8 Sep 2022.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 29 Sep 2022.
- The CVE record was published on 19 Apr 2018, 1,603 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 100% (percentile 100), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
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).
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-502: Deserialization of Untrusted Data
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 19 Apr 2018 | CVE record published |
| 8 Sep 2022 | Added to CISA KEV |
| 29 Sep 2022 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
More exploited Oracle vulnerabilities
- CVE-2026-21962: Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control Vulnerability
- CVE-2026-46817: Oracle E-Business Suite Improper Privilege Management Vulnerability
- CVE-2026-35273: Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability
- CVE-2024-21182: Oracle WebLogic Server Unspecified Vulnerability
- CVE-2025-61757: Oracle Fusion Middleware Missing Authentication for Critical Function Vulnerability
- CVE-2025-61884: Oracle E-Business Suite Server-Side Request Forgery (SSRF) Vulnerability