CVE-2026-84246 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 condition that can be triggered by a remote attacker interacting with the service over a network connection. Buffer overflow vulnerabilities occur when a program writes more data to a fixed-length block of memory than it is allocated to hold, causing adjacent memory locations to be overwritten with unintended values. In the context of IBM Guardium Data Protection, which serves as a comprehensive solution for database security and compliance monitoring, such an architectural weakness poses significant risks due to the sensitive nature of the data processed by the system.
From a technical perspective, this vulnerability allows an unauthenticated remote attacker to execute arbitrary code on the affected system with the privileges of the vulnerable process. The exploitation typically involves crafting a maliciously formatted request or input payload that exceeds the expected buffer size defined in the application's memory allocation routines. When the software fails to properly validate the length of incoming data before copying it into a fixed-size buffer, the excess bytes spill over into adjacent memory spaces. This overflow can corrupt critical program structures such as function return addresses, exception handlers, or other control flow mechanisms. By carefully controlling these overwritten values, an attacker can redirect the execution flow of the application to point to shellcode injected within the payload, thereby achieving remote code execution without requiring prior authentication credentials in many scenarios involving unauthenticated endpoints.
The operational impact of this vulnerability is severe given the role IBM Guardium Data Protection plays in enterprise environments. As a central component for monitoring and protecting database activity, compromising this service could allow an attacker to gain full control over the underlying operating system. This level of access enables the exfiltration of sensitive data stored within monitored databases, modification or deletion of audit logs to cover tracks, and potentially using the compromised server as a pivot point for further lateral movement within the network. The ability to execute arbitrary code effectively neutralizes the security controls provided by Guardium itself, leaving critical database assets exposed to unauthorized access and manipulation. Furthermore, because this is a remote vulnerability, it can be exploited over standard network protocols without physical or local system access, significantly increasing its attack surface and likelihood of exploitation in internet-facing deployments.
This flaw aligns with Common Weakness Enumeration (CWE) identifier CWE-120, which describes Buffer Copy without Checking Size of Input, indicating a failure to perform adequate bounds checking on input data before copying it into memory buffers. Additionally, the capability for remote code execution places this vulnerability within the MITRE ATT&CK framework under techniques associated with Initial Access and Execution, specifically relating to exploitation via network services or protocols that do not require user interaction beyond sending malicious packets. The lack of authentication requirements in certain attack vectors further exacerbates the risk profile, classifying it as a high-severity issue according to standard vulnerability scoring systems like CVSS due to its potential for widespread automated exploitation and significant impact on confidentiality, integrity, and availability.
To mitigate this risk, organizations running IBM Guardium Data Protection versions 12.0, 12.1, or 12.2 must apply the vendor-provided security patches immediately upon release. It is imperative to verify that all instances of the software are updated to a version where the buffer overflow condition has been resolved through improved input validation and memory management practices. In addition to patching, network-level defenses such as Web Application Firewalls or intrusion prevention systems should be configured to detect and block anomalous traffic patterns indicative of buffer overflow attempts, particularly those involving unusually large payloads in specific protocol fields. Regular vulnerability scanning and penetration testing should also be conducted to ensure that no residual exposure remains after the update process is complete.