Executive Intelligence Brief

A critical vulnerability, CVE-2026-15762, has been identified in IBM DataPower Gateway, a widely used integration gateway for APIs, applications, and data. This vulnerability has a CVSS score of 9.8, indicating a high severity level. It allows a remote attacker to execute arbitrary code due to an out-of-bounds write, potentially leading to complete system compromise. Affected versions include 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. Organizations are strongly advised to apply patches immediately to prevent potential exploitation.

Threat Overview

IBM DataPower Gateway is an integration gateway that enables enterprises to securely and rapidly integrate various applications, services, and data across multiple platforms. It is widely used in various industries for its robust security features and high performance. The vulnerability CVE-2026-15762 affects multiple versions of DataPower Gateway, making it a significant concern for organizations using these versions.

Historically, DataPower Gateway has been a target for attackers due to its high value as an integration point in enterprise networks. Previous vulnerabilities in similar products have been exploited in the wild, highlighting the importance of promptly addressing security issues.

Technical Deep Dive

Vulnerability Classification

CVE-2026-15762 is classified as an out-of-bounds write vulnerability, which falls under CWE-787. This class of vulnerability occurs when a program writes data to a buffer without properly checking the buffer's boundaries, potentially leading to arbitrary code execution.

The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating that the attack vector is network-based, attack complexity is low, no privileges are required, and user interaction is not needed. The impact is high across confidentiality, integrity, and availability.

Root Cause Analysis

The root cause of this vulnerability is an out-of-bounds write in the affected versions of IBM DataPower Gateway. This flaw allows a remote attacker to execute arbitrary code by sending a specially crafted request that exploits the vulnerability.

Attack Vector & Chain

The attack vector for CVE-2026-15762 involves a remote attacker sending a malicious request to the affected IBM DataPower Gateway. The attacker does not need any privileges or user interaction to exploit the vulnerability. The attack can be chained with other vulnerabilities to potentially escalate privileges or move laterally within a network.

Exploitation Scenario Walkthrough

Scenario: Remote Code Execution via Malicious Request

Reconnaissance: An attacker scans for exposed IBM DataPower Gateway instances using a tool like Shodan.

Weaponization: The attacker crafts a malicious request that exploits the out-of-bounds write vulnerability.

Delivery & Exploitation: The attacker sends the crafted request to the vulnerable DataPower Gateway, triggering the out-of-bounds write and allowing for arbitrary code execution.

Post-Exploitation: The attacker executes arbitrary code, potentially leading to privilege escalation, lateral movement, and data exfiltration.

Impact Realization: The attacker achieves complete system compromise, allowing for various malicious activities.

Exploitation in the Wild

There is no indication that CVE-2026-15762 is currently being actively exploited in the wild. However, given the high severity and potential impact, it is essential to treat this vulnerability as a critical risk and apply patches immediately.

Impact Analysis

Direct Impact

A successful exploitation of CVE-2026-15762 allows a remote attacker to execute arbitrary code on the affected IBM DataPower Gateway. This can lead to complete system compromise, including data exfiltration, privilege escalation, and lateral movement within the network.

Downstream & Cascading Effects

The downstream effects of this vulnerability can be significant, given the integration role of DataPower Gateway in enterprise networks. A compromised gateway can be used as a pivot point for further attacks, potentially affecting connected systems and data.

Affected Products & Versions

The affected versions of IBM DataPower Gateway are:

  • 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
  • 11.0.0.0 through 11.0.0.2

Detection & Threat Hunting

Indicators of Compromise

No specific indicators of compromise (IoCs) are provided in the source data. However, organizations should monitor for unusual activity on their DataPower Gateway instances, such as unexpected changes in system behavior or unexplained network communications.

Detection Rules & Signatures

Detection logic should focus on monitoring network traffic to and from DataPower Gateway instances for signs of malicious activity. SIEM/EDR systems can be configured to alert on suspicious requests or patterns that may indicate exploitation attempts.

Threat Hunting Queries

Threat hunting queries should be designed to identify potential exploitation attempts or post-exploitation activity. This may involve searching for unusual network traffic patterns, unexpected system changes, or anomalies in user behavior.

Remediation & Hardening

Immediate Actions (0-24 hours)

Organizations should apply patches to affected IBM DataPower Gateway instances as soon as possible. The patches can be found on the IBM support website.

Short-Term Hardening (1-7 days)

In addition to patching, organizations should:

  • Monitor network traffic to and from DataPower Gateway instances for signs of malicious activity.
  • Implement additional security controls, such as network segmentation and access restrictions.

Strategic Recommendations

Long-term recommendations include:

  • Regularly updating and patching DataPower Gateway instances.
  • Implementing a robust security monitoring program to detect and respond to potential threats.
  • Conducting regular security assessments and penetration testing to identify vulnerabilities and improve overall security posture.

Analyst Assessment

The risk of inaction is high, given the critical severity of CVE-2026-15762 and the potential for complete system compromise. Organizations should prioritize patching affected instances and implementing additional security controls to mitigate the risk of exploitation.

Sources