CVE-2026-17179 in Db2 Mirror for i
Summary
by MITRE • 08/14/2026
IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to cause a denial of service due to command injection.
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Analysis
by VulDB Data Team • 08/14/2026
This vulnerability affects IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6, presenting a significant security risk that could be exploited by remote authenticated attackers to induce denial of service conditions. The flaw stems from inadequate input validation mechanisms within the system's command processing functionality, allowing maliciously crafted inputs to be executed as commands within the underlying operating system environment. This represents a critical command injection vulnerability that falls under CWE-77 and CWE-89 categories, where user-supplied data is improperly handled during command construction processes.
The technical implementation of this vulnerability occurs when authenticated users submit specially crafted commands or parameters through the Db2 Mirror interface that are then directly incorporated into system commands without proper sanitization or escaping mechanisms. Attackers can leverage this weakness to execute arbitrary operating system commands with the privileges of the Db2 service account, potentially leading to complete system compromise or disruption of critical database services. The vulnerability is particularly concerning as it requires only authentication credentials to exploit, making it accessible to both internal and external threat actors who have legitimate access to the system.
From an operational impact perspective, successful exploitation can result in immediate denial of service conditions that disrupt database availability and business continuity operations. The command injection allows attackers to terminate database processes, modify system configurations, or even escalate privileges to gain administrative control over the entire Db2 environment. This vulnerability directly impacts the integrity and availability aspects of the CIA triad, potentially causing cascading failures throughout dependent applications and services that rely on database connectivity. Organizations may experience extended downtime, data unavailability, and potential data corruption depending on the specific commands executed by attackers.
Mitigation strategies should include immediate application of vendor security patches and updates released for IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6 to address the command injection vulnerability. Network segmentation and access controls should be implemented to limit authentication access to only authorized personnel who require database administration privileges. Input validation mechanisms should be strengthened throughout the application layers to prevent malicious command sequences from being processed. Additionally, monitoring and logging configurations should be enhanced to detect unusual command execution patterns that may indicate exploitation attempts. The vulnerability aligns with ATT&CK technique T1059 which covers command and script injection, making it essential for security teams to implement proper detection capabilities. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in database systems and ensure comprehensive protection against authenticated attack vectors.