Key points
- CVE-2026-101529 scores 9.9 CVSS, indicating severe risk to confidentiality, integrity, and availability.
- Low-privileged attackers with network access via HTTP can exploit the Data Guard Management component.
- Oracle Enterprise Manager versions 13.5 and 24.1 are confirmed affected by this easily exploitable vulnerability.
Remote attackers can now seize complete control of Oracle Enterprise Manager for Oracle Database systems by exploiting a critical flaw in the Data Guard Management component. This vulnerability, tracked as CVE-2026-101529, allows adversaries with only low-level privileges to compromise the system through standard HTTP network access. The ease of exploitation combined with the high impact makes this a pressing concern for organizations relying on these database management tools.
The flaw affects supported versions 13.5 and 24.1 of the software. According to the National Vulnerability Database record, successful exploitation results in the total takeover of the Oracle Enterprise Manager instance. Because the vulnerability exists within the management layer, attacks may significantly impact additional products connected to or managed by the system, leading to a scope change that amplifies the potential damage across the broader infrastructure.
What we know
The CVSS 3.1 Base Score of 9.9 reflects the maximum possible impact on confidentiality, integrity, and availability. The vector string indicates that the attack is network-accessible and requires no user interaction, lowering the barrier for exploitation. The scope change designation means that compromising the vulnerable component can affect other systems beyond the initial target, potentially allowing lateral movement or further compromise of dependent database environments managed by the affected Oracle Enterprise Manager instance.
Defender's checklist
- Verify if your environment runs Oracle Enterprise Manager versions 13.5 or 24.1.
- Audit network access controls to ensure only authorized users can reach the management interface via HTTP.
- Review logs for any unusual low-privilege authentication attempts or unexpected administrative actions.
- Isolate affected management servers from critical database production environments to limit exposure.
What analysts watch for
Teams usually monitor for anomalous HTTP requests to management interfaces, especially from unexpected IP ranges or low-privilege accounts. Analysts check whether session tokens are being hijacked or if administrative functions are triggered without proper authorization. Persistence mechanisms often involve creating new privileged accounts or modifying existing configuration files to maintain access. Spread typically occurs through lateral movement to other managed systems, so examining outbound connections from the compromised manager to other network segments is essential for containment.
What to do and how to stay safe: Oracle Enterprise Manager
- Restrict HTTP access to Oracle Enterprise Manager management consoles to trusted internal networks only.
- Implement multi-factor authentication for all administrative accounts to mitigate low-privilege exploitation risks.
- Monitor for unauthorized changes to Data Guard configurations or unexpected system takeovers.
- Prepare to apply vendor updates once they are released for versions 13.5 and 24.1.
Step-by-step guide: Security Advisories: Small Business Patching Strategy
General security guidance from the Malware Chronicle newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
Which Oracle Enterprise Manager versions are vulnerable to CVE-2026-101529?
Versions 13.5 and 24.1 are the supported versions confirmed to be affected by this vulnerability.
What is the severity rating of this flaw?
The vulnerability has a CVSS 3.1 Base Score of 9.9, which is rated as Critical.
Can a low-privileged attacker exploit this?
Yes, the flaw allows a low-privileged attacker with network access via HTTP to compromise the system.
