CVE-2026-35298 Oracle Corporation CVE debrief

Who should care

Organizations using Oracle Fusion Middleware's WebLogic Server, especially those with high-privileged network access, should prioritize patching this vulnerability to prevent potential system compromise. This includes reviewing and updating security configurations, monitoring for suspicious activity, and implementing compensating controls if necessary.

Technical summary

The vulnerability, CVE-2026-35298, has a CVSS 3.1 Base Score of 9.1, indicating critical severity. It is easily exploitable and allows high privileged attackers with network access via HTTP to compromise WebLogic Server. The vulnerability's impact is not limited to WebLogic Server, as attacks may significantly affect additional products. A successful attack can lead to a complete takeover of WebLogic Server.

Defensive priority

High priority should be given to patching this vulnerability due to its critical severity, ease of exploitation, and potential for significant impact on affected systems and additional products.

Recommended defensive actions

• Apply the latest security patches provided by Oracle for WebLogic Server.
• Implement network access controls to limit access to WebLogic Server.
• Monitor WebLogic Server for suspicious activity.
• Consider compensating controls if immediate patching is not feasible.
• Review relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record was published on 2026-06-17T10:40:21.887Z and was last modified on 2026-06-18T15:45:27.873Z. The NVD entry is currently Analyzed. This vulnerability affects WebLogic Server versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. High privileged attackers with network access via HTTP can compromise WebLogic Server, potentially impacting additional products. Successful attacks can result in a complete takeover of WebLogic Server. The CVSS 3.1 Base Score is 9.1, indicating critical severity.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.