CVE-2026-62624 Overview
CVE-2026-62624 is a critical vulnerability in Oracle Reports Developer, a component of Oracle Fusion Middleware. The flaw resides in the Security and Authentication component and affects supported version 12.2.1.19.0. An unauthenticated attacker with network access via the Internet Inter-ORB Protocol (IIOP) can exploit the weakness with low complexity. Successful exploitation results in complete takeover of Oracle Reports Developer, compromising confidentiality, integrity, and availability. Oracle addressed the issue in the Oracle Security Alert August 2026.
Critical Impact
Remote, unauthenticated attackers can fully compromise Oracle Reports Developer over the network via IIOP, resulting in full system takeover.
Affected Products
- Oracle Fusion Middleware — Oracle Reports Developer
- Affected version: 12.2.1.19.0
- Component: Security and Authentication
Discovery Timeline
- 2026-08-18 - CVE-2026-62624 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-62624
Vulnerability Analysis
CVE-2026-62624 affects the Security and Authentication component of Oracle Reports Developer. The vulnerability is reachable over the network through the Internet Inter-ORB Protocol (IIOP), a Common Object Request Broker Architecture (CORBA) protocol used by Oracle middleware for remote object communication. An unauthenticated attacker can send crafted IIOP requests to a vulnerable instance and achieve full compromise of the product. Oracle's advisory classifies the impact as high across confidentiality, integrity, and availability, with successful attacks resulting in takeover of Oracle Reports Developer. The EPSS score is 0.486%, placing it in the 39.99th percentile at time of publication.
Root Cause
Oracle has not published component-level technical details beyond identifying the Security and Authentication module. Historically, IIOP-reachable Oracle Fusion Middleware flaws with the same profile have involved insecure deserialization of untrusted Java objects transmitted through the CORBA channel. Public details are limited to Oracle's advisory.
Attack Vector
The attack vector is network-based. The attacker requires network reachability to the IIOP listener of the Oracle Reports Developer server. No authentication and no user interaction are required. Because IIOP endpoints are often exposed inside enterprise networks rather than on the internet, the practical attack surface is largest for lateral-movement scenarios after an initial foothold. Refer to the Oracle Security Alert August 2026 for vendor guidance.
Detection Methods for CVE-2026-62624
Indicators of Compromise
- Unexpected inbound connections to the Oracle Reports Developer IIOP listener from untrusted sources or unusual internal hosts.
- New or modified Java classes, JSP files, or executable artifacts under Oracle Reports Developer installation directories.
- Unexplained Oracle Reports service restarts, crashes, or spawned child processes such as cmd.exe, powershell.exe, or /bin/sh.
- Outbound network connections from the Reports Developer host to unfamiliar external hosts following IIOP traffic.
Detection Strategies
- Monitor Oracle Fusion Middleware and WebLogic logs for anomalous IIOP requests, deserialization errors, or authentication component exceptions.
- Baseline normal IIOP traffic patterns and alert on connections from non-application-tier hosts.
- Correlate process execution telemetry on the Reports Developer host with inbound IIOP traffic to catch post-exploitation command execution.
Monitoring Recommendations
- Ingest Oracle Fusion Middleware, WebLogic, and host process logs into a centralized analytics platform for correlation.
- Enable EDR process, file, and network telemetry on all servers running Oracle Reports Developer 12.2.1.19.0.
- Alert on any child process creation by the Reports Developer Java process, which is unusual under normal operation.
How to Mitigate CVE-2026-62624
Immediate Actions Required
- Apply the Oracle Security Alert August 2026 patches to all affected Oracle Reports Developer 12.2.1.19.0 deployments without delay.
- Restrict network access to the IIOP listener to only trusted management hosts using host-based and network firewalls.
- Inventory all Oracle Fusion Middleware instances to confirm exposure and patch status.
- Review Reports Developer hosts for indicators of compromise before and after patching.
Patch Information
Oracle has released fixes as part of the Oracle Security Alert August 2026. Administrators should apply the vendor-supplied patch for Oracle Reports Developer 12.2.1.19.0. Follow Oracle's documented patch procedure for Fusion Middleware, including pre-patch backups and post-patch verification of service functionality.
Workarounds
- Block IIOP protocol access at network boundaries where the protocol is not required for business operations.
- Disable the IIOP listener in WebLogic if Reports Developer functionality does not depend on it, following Oracle documentation.
- Place Oracle Reports Developer behind a segmented management network accessible only through jump hosts and enforced authentication.
- Enforce strict egress filtering from Reports Developer hosts to limit post-exploitation callbacks.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
