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PatchSiren cyber security CVE debrief

CVE-2026-35305 Oracle Corporation CVE debrief

A critical vulnerability was discovered in Oracle Coherence, a product of Oracle Fusion Middleware. The vulnerability is easily exploitable and allows unauthenticated attackers with network access via HTTP to compromise the system. Successful attacks can result in unauthorized access to critical data or complete access to all Oracle Coherence accessible data, as well as unauthorized update, insert or delete access to some of Oracle Coherence accessible data. The vulnerability has a CVSS 3.1 Base Score of 9.3, indicating a critical severity.

Vendor
Oracle Corporation
Product
Oracle Coherence
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-17
Advisory published
2026-06-17
Advisory updated
2026-06-17

Who should care

Organizations using Oracle Coherence version 15.1.1.0.0 should prioritize patching this vulnerability to prevent potential attacks. Security teams and vulnerability management teams should review the CVE record and NVD entry to understand the affected scope and severity. IT operators and administrators should verify that Oracle Coherence is properly configured and up-to-date.

Technical summary

The vulnerability is located in the Centralized Third Party Jars component of Oracle Coherence, a product of Oracle Fusion Middleware. It has a CVSS 3.1 Base Score of 9.3, indicating a critical severity. The CVSS Vector is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N). The vulnerability allows unauthenticated attackers with network access via HTTP to compromise the system. Successful attacks can result in unauthorized access to critical data or complete access to all Oracle Coherence accessible data, as well as unauthorized update, insert or delete access to some of Oracle Coherence accessible data. Organizations should verify that Oracle Coherence is properly configured and up-to-date, and consider implementing additional security controls, such as Web Application Firewalls, to mitigate potential attacks.

Defensive priority

High

Recommended defensive actions

  • Apply the patch provided by Oracle Corporation
  • Restrict access to Oracle Coherence to only trusted networks
  • Monitor Oracle Coherence logs for suspicious activity
  • Consider implementing additional security controls, such as Web Application Firewalls
  • Verify that Oracle Coherence is properly configured and up-to-date
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-06-17T10:40:22.620Z and has not been modified since then. The NVD entry is currently Analyzed. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with Oracle Corporation. The vulnerability is located in the Centralized Third Party Jars component of Oracle Coherence. The CVSS 3.1 Base Score is 9.3, indicating a critical severity.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-06-17T10:40:22.620Z and has not been modified since then. The NVD entry is currently Analyzed.