Security readout for executives and security teams
Plain-English summary
CVE-2020-2766 is a medium-severity Oracle WebLogic Server Console issue. An unauthenticated attacker who can reach the server over HTTP could read some WebLogic-accessible data without permission. The cited sources indicate confidentiality impact only, not data tampering or outage.
Executive priority
Treat as a moderate-priority confidentiality risk. Escalate if WebLogic Console is internet-facing, supports sensitive applications, or runs an affected unsupported version.
Technical view
The vulnerability affects Oracle WebLogic Server 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, and 12.2.1.4.0. It is network exploitable over HTTP, requires no privileges or user interaction, and has CVSS 3.0 score 5.3 with low confidentiality impact.
Likely exposure
Organizations running affected WebLogic versions with the Console reachable over HTTP are the primary exposure group. Internet-facing or broadly reachable management interfaces increase practical risk.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability is still easily exploitable by network access, so exposure depends heavily on WebLogic Console reachability.
Researcher notes
Available evidence identifies component, versions, vector, and impact, but not the underlying bug class or specific vulnerable endpoint. Avoid assuming integrity or availability impact beyond the CVSS vector.
Mitigation direction
- Review Oracle's April 2020 Critical Patch Update guidance for WebLogic Server.
- Apply applicable Oracle-supported WebLogic updates for affected versions.
- Confirm whether the WebLogic Console is reachable from untrusted networks.
- Restrict Console access while patch status is being verified.
- Prioritize unsupported or internet-facing WebLogic instances for remediation.
Validation and detection
- Inventory WebLogic Server versions across production and non-production environments.
- Identify instances running 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, or 12.2.1.4.0.
- Check whether the Console is exposed over HTTP to untrusted networks.
- Verify Oracle CPU or later applicable fixes are installed.
- Review access logs for unusual unauthenticated Console requests.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2020-2766 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.3MediumVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpuapr2020.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.