IBM DataPower Gateway Buffer Overflow Enables Remote Exploitation in Versions 10.5 to 11.0

The National Vulnerability Database (NVD) has published a record for CVE-2026-14992, a critical buffer overflow vulnerability found in IBM DataPower Gateway. This flaw impacts several release lines of the integration appliance, exposing organizations to potential remote exploitation. Security teams should treat this issue with high priority given the severity rating and the nature of the underlying weakness.

Root cause

According to the NVD record, the vulnerability is classified under CWE-787, which denotes an out-of-bounds write or buffer overflow. This type of weakness occurs when a program writes data beyond the boundaries of a fixed-length buffer. In the context of IBM DataPower Gateway, this error allows an attacker to overwrite adjacent memory locations, potentially leading to arbitrary code execution or system crashes. The specific trigger conditions are not detailed in the advisory, but the presence of a buffer overflow indicates a failure in input validation or memory management within the gateway software.

Attack path

While the NVD record does not specify the exact vector, buffer overflow vulnerabilities in network-facing appliances like DataPower Gateway are typically exploitable remotely. An attacker could send a specially crafted request or payload to the vulnerable service. If the application fails to check the size of the incoming data against the allocated buffer, the overflow occurs. This could allow an unauthenticated attacker to execute arbitrary code on the system, taking full control of the gateway. The critical CVSS score of 9.8 suggests that the attack complexity is low and no user interaction is required.

Affected versions

The vulnerability affects a wide range of IBM DataPower Gateway versions. Organizations running any of the following releases are impacted:

• IBM DataPower Gateway 10.5.0.0 through 10.5.0.22
• IBM DataPower Gateway 10.6.1 through 10.6.6
• IBM DataPower Gateway 10.6.0.0 through 10.6.0.10
• IBM DataPower Gateway 11.0.0.0 through 11.0.0.2

Mitigation

The provided source material does not confirm the availability of a patch, fix, or update for CVE-2026-14992. In the absence of a confirmed vendor fix, security teams should consider the following defensive measures:

• Isolate affected IBM DataPower Gateway appliances from untrusted networks.
• Implement strict network access controls to limit exposure to potential attackers.
• Monitor gateway logs for signs of exploitation attempts or unusual traffic patterns.
• Contact IBM support directly to inquire about available security updates or workarounds.

What to do and how to stay safe: IBM

• Firewalls cannot stop attacks that originate from inside your network or use allowed ports.
• Antivirus software struggles to detect new exploits that do not yet have a known signature.
• Third-party libraries and plugins often introduce vulnerabilities that the main application vendor cannot fix.

Unpatched software remains a critical vulnerability regardless of your other security measures. Audit your software inventory regularly and apply patches promptly to close known entry points.

Step-by-step guide: Unpatched Software Myths: Why Common Beliefs Fail to Protect You

General security guidance from the BlueTeam Insider newsroom. It is not confirmed advice from the organisations named in this story.

Frequently asked questions

What is the CVSS score for CVE-2026-14992?

The National Vulnerability Database rates CVE-2026-14992 as 9.8, which is classified as Critical.

Which IBM DataPower Gateway versions are vulnerable?

Versions 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 are affected.

Is there a patch available for this buffer overflow flaw?

No fix has been confirmed in the current source material; organizations should check with IBM for updates.