CVE-2026-17175 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 obtain sensitive information due to improper authentication enforcement.
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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, representing a critical security flaw that enables remote authenticated attackers to access sensitive information through improper authentication enforcement mechanisms. The vulnerability stems from insufficient validation of authentication credentials within the system's access control framework, allowing attackers who have already established initial authentication to escalate their privileges or bypass additional security controls that should normally protect sensitive data.
The technical implementation of this flaw involves weaknesses in the authentication enforcement logic where the system fails to properly verify that authenticated users possess appropriate authorization levels for accessing specific data sets or system resources. This creates a path for privilege escalation attacks where attackers can potentially access information beyond their intended access permissions, particularly affecting database mirroring operations and related administrative functions.
From an operational impact perspective, this vulnerability compromises the integrity of the database security model by allowing unauthorized information disclosure to authenticated users who should not have access to certain data repositories. The attack vector requires initial authentication credentials but does not necessitate additional exploitation techniques beyond leveraging the flawed authentication enforcement mechanisms. Organizations using these specific Db2 Mirror for i versions face significant risk of data exposure and potential compliance violations, particularly in environments where sensitive business or personal information is stored.
This vulnerability aligns with CWE-287 which addresses improper authentication issues in software systems. The flaw demonstrates characteristics consistent with credential mismanagement and access control bypass scenarios that can be mapped to ATT&CK techniques involving privilege escalation and credential access. Organizations should implement immediate mitigations including applying vendor security patches, reviewing and strengthening authentication policies, and conducting comprehensive access control audits to prevent exploitation of this vulnerability across their database environments.
The affected systems require prompt remediation through official IBM security updates that address the authentication enforcement mechanisms within the Db2 Mirror for i platform. Security teams must also consider implementing additional monitoring controls to detect anomalous access patterns that might indicate exploitation attempts, while ensuring proper segregation of duties and principle of least privilege configurations are maintained throughout the database infrastructure to minimize potential impact from this vulnerability.