Description

IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.8",
  "pubDate": "2026-08-12T18:17:25.133Z",
  "pubdate": "2026-08-12T18:17:25.133Z",
  "executiveSummary": "An OS command injection vulnerability exists within IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6.\nThe vulnerability arises from the improper neutralization of special elements utilized in operating system commands, allowing a remote attacker to execute arbitrary system commands with the privileges of the vulnerable service.\nSuccessful exploitation of this flaw can lead to complete system compromise, unauthorized access to sensitive database replicas, data manipulation, and disruption of high-availability database mirroring operations.\nThe risk implication is critical, as it exposes core enterprise database infrastructure to remote code execution vectors without requiring complex preconditions, provided network reachability to the vulnerable component is established.\nThreat actors possessing network access can leverage crafted input payloads containing malicious OS command sequences to bypass input validation routines.\nRemediation requires applying official vendor-supplied patches or updates as provided by IBM to resolve the command injection vector.",
  "technicalDetails": "The root cause of the vulnerability is insufficient input sanitization and improper neutralization of special characters within the command-processing logic of IBM Db2 Mirror for i.\nWhen user-supplied or remotely transmitted data is processed and passed directly to an underlying operating system shell or execution function without adequate escaping or parameterization, the interpreter evaluates special metacharacters as command separators or modifiers.\nThe vulnerable component resides within the command execution handling routines of IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6.\nAttack flow begins when a remote attacker crafts a malicious input string containing concatenated operating system commands using shell metacharacters such as semicolons, pipes, or ampersands.\nUpon transmission, the vulnerable application incorporates this unsanitized input into an internal OS command string.\nWhen executed by the system shell, the injected commands are parsed and executed sequentially alongside or instead of the intended administrative routines.\nAuthentication and privilege requirements depend on the specific interface exposed to the network, but the capability to supply data to the vulnerable command-processing routine is sufficient to trigger the flaw.\nNetwork exposure is present wherever the affected IBM Db2 Mirror for i service is reachable across the network boundary.\nPayload behavior typically involves executing arbitrary binaries, scripts, or administrative utilities present on the underlying IBM i operating system.\nPost-exploitation impact includes unauthorized privilege escalation, execution of arbitrary payloads, lateral movement within the network, extraction of sensitive database assets, and persistent tampering with high-availability configurations."
}