Overview
Oracle Concurrent Processing versions 12.2.3 through 12.2.14 contain a critical remote code execution vulnerability accessible via unauthenticated HTTP network access. This vulnerability allows unauthenticated attackers to fully compromise affected systems without requiring authentication. The vulnerability was disclosed on October 5, 2025. CISA has identified CVE-2025-61882 as being exploited and is known to be used in ransomware campaigns.
Technical details
Oracle Concurrent Processing, a critical component of Oracle E-Business Suite (EBS), contains a remote code execution vulnerability that can be exploited by unauthenticated attackers over HTTP. The vulnerability allows attackers to execute arbitrary code on the server with the privileges of the web server process, leading to complete system compromise.
The vulnerability is classified as CWE-287 (Improper Authentication) , CWE-434 (Unrestricted Upload of File with Dangerous Type) andCWE-78 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) .
The vulnerability has received a CVSS v3.1 base score of 9.8 (CRITICAL) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H, indicating its critical nature.
Impact
Successful exploitation allows unauthenticated attackers to execute arbitrary code on the affected system with the privileges of the Oracle Concurrent Processing application. This can lead to: complete system compromise, unauthorized access to sensitive business data, modification or deletion of critical business records, disruption of business operations, lateral movement within the organization's network, and installation of persistent backdoors for ongoing access.
Mitigation and workarounds
1. Download the latest Oracle Critical Patch Update (CPU) from Oracle Support (https://support.oracle.com) 2. Review the patch documentation and prerequisites 3. Apply the patch following Oracle's patching procedures for E-Business Suite 4. Test in a non-production environment before applying to production 5. Schedule maintenance window and apply to all affected Concurrent Processing instances 6. Verify patch installation with appropriate integrity checks The following versions include the necessary fixes: Oracle Concurrent Processing 12.2.15 or later, Apply Oracle Critical Patch Update (CPU) from January 2025 or later.
As temporary workarounds: restrict network access to oracle concurrent processing http endpoints using firewall rules, waf (web application firewall), or network segmentation. limit access to trusted ip addresses/networks only.; disable http access and require https with client certificate authentication where possible. configure the application to reject unauthenticated requests.; place oracle concurrent processing behind a reverse proxy or api gateway with authentication enforcement, rate limiting, and input validation., and implement web application firewall (waf) rules to detect and block exploitation attempts targeting this vulnerability..
CISA's recommendation: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Additional resources
Source: This report was generated using AI
