CVE-2026-84875 in Guardium Data Protection
Summary
by MITRE • 10/09/2026
IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allow a remote attacker to execute arbitrary code due to a buffer overflow.
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Analysis
by VulDB Data Team • 10/09/2026
The vulnerability identified in IBM Guardium Data Protection versions 12.0 through 12.2 represents a critical security flaw rooted in improper memory management within the application's processing logic. Specifically, this issue manifests as a heap-based or stack-based buffer overflow, which occurs when the software fails to adequately validate the length of user-supplied input before copying it into a fixed-size memory buffer. This type of error is particularly dangerous because it allows an attacker who can interact with the vulnerable component over the network to write data beyond the boundaries of the allocated buffer. In many modern operating systems, such as Windows or Linux variants commonly used in enterprise environments, this overflow can corrupt adjacent memory structures, including function return addresses, exception handling pointers, or heap metadata. By carefully crafting malicious input that exceeds the expected size limits, a remote attacker can manipulate these overwritten values to redirect the program's execution flow to arbitrary code injected into the process memory space.
From an operational perspective, the successful exploitation of this buffer overflow grants the attacker full control over the affected system running IBM Guardium Data Protection. Since database security and monitoring tools often operate with elevated privileges or have access to sensitive data repositories, achieving remote code execution in this context is severe. The immediate impact includes the potential compromise of the integrity, confidentiality, and availability of the protected databases. An adversary could use this foothold to exfiltrate confidential information, modify critical records, install additional malware such as backdoors or ransomware, or pivot further into the internal network by leveraging the compromised host's trust relationships with other systems. This undermines the core value proposition of IBM Guardium, which is to provide visibility and protection for data assets against unauthorized access and malicious activity.
This vulnerability aligns closely with Common Weakness Enumeration (CWE) identifier CWE-120, which describes Buffer Copy without Checking Size of Input Classic Overflow. The exploitation technique typically involves sending a specially crafted network packet or request that triggers the overflow condition during input parsing. In terms of adversary tactics and techniques, this scenario maps to MITRE ATT&CK technique T1190, Exploit Public-Facing Application, as it leverages a flaw in software exposed to remote attackers. Furthermore, if the attacker utilizes shellcode injection via the buffer overflow, it may also relate to T1203, Exploitation for Client Execution, depending on how the payload is delivered and executed within the target environment. The lack of proper bounds checking indicates a failure in secure coding practices during the development phase, highlighting the need for rigorous input validation and memory-safe programming techniques.
To mitigate this risk, organizations must prioritize immediate patching by applying the latest updates provided by IBM that address the buffer overflow condition. It is essential to verify that all instances of IBM Guardium Data Protection within the infrastructure are updated to a version where this vulnerability has been resolved. In environments where immediate patching is not feasible due to operational constraints or testing requirements, network-level controls should be implemented as compensating measures. This includes restricting access to the vulnerable service ports using firewall rules to allow connections only from trusted management networks and implementing Web Application Firewalls (WAF) with specific signatures designed to detect buffer overflow attempts or anomalous input lengths. Additionally, enabling strict logging and monitoring for unusual network traffic patterns targeting Guardium components can aid in early detection of exploitation attempts. Regular vulnerability scanning and penetration testing should also be conducted to ensure that similar memory safety issues are identified and remediated across the application portfolio before they can be exploited by malicious actors.