Description

IBM Informix Dynamic Server 14.10, 15.0, and 12.10 IBM Informix could allow an unauthenticated user to execute arbitrary commands with service account privileges on the system due to improper validation of user supplied input.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.3",
  "pubDate": "2026-08-12T21:17:35.510Z",
  "pubdate": "2026-08-12T21:17:35.510Z",
  "executiveSummary": "This vulnerability involves improper validation of user-supplied input within IBM Informix Dynamic Server, which can be leveraged to achieve arbitrary command execution.\nThe vulnerability affects IBM Informix Dynamic Server versions 14.10, 15.0, and 12.10.\nAn unauthenticated remote attacker can exploit this flaw to execute arbitrary system commands directly with the privileges of the database service account, bypassing standard authorization controls.\nThe primary risk implication is complete system compromise of the host running the vulnerable database instance, potentially exposing sensitive data, enabling lateral movement within the network, and undermining overall infrastructure confidentiality, integrity, and availability.\nSuccessful exploitation requires network connectivity to the vulnerable service and relies on supplying maliciously crafted input that evades validation checks, subsequently triggering unintended code execution pathways in the underlying operating system environment.",
  "technicalDetails": "The root cause of the vulnerability stems from inadequate sanitization and improper validation of user-supplied input processed by IBM Informix Dynamic Server versions 14.10, 15.0, and 12.10.\nThe vulnerable component fails to adequately inspect or restrict incoming data parameters before passing them to internal functions or underlying operating system interfaces.\nExploitation does not require prior authentication, allowing an unauthenticated network-based adversary to interact directly with the vulnerable service.\nThe attack flow begins when the adversary transmits a specially crafted request containing malicious payloads designed to manipulate the insecure input processing mechanism.\nDue to the absence of robust input validation, the application interprets the injected data as executable instructions or shell commands rather than inert literal values.\nThese commands are subsequently evaluated and executed by the host operating system under the security context of the user account running the IBM Informix service.\nPost-exploitation impact includes full code execution capabilities, allowing the attacker to read, modify, or delete critical database files, install persistent backdoors, extract sensitive system configurations, and pivot to other segments of the internal network leveraging the compromised database host as an operational staging point."
}