Heap Buffer Overflow Vulnerability in IBM MQ Appliance

CVE-2026-10747

What is CVE-2026-10747?

CVE-2026-10747 is a vulnerability affecting the IBM MQ Appliance, a messaging platform designed for enabling communication between various applications and services. This particular vulnerability manifests as a heap buffer overflow in the processing of protocol messages prior to user authentication. If exploited, a remote attacker could leverage this flaw to induce a denial of service or execute arbitrary code on the affected system. This could lead to substantial disruptions in operational continuity and compromise the security of data being transmitted, posing significant risks to organizations relying on IBM MQ for their messaging needs.

Potential impact of CVE-2026-10747

1. Denial of Service: The vulnerability can result in denial of service, effectively rendering the IBM MQ Appliance inoperable. This could lead to downtimes that disrupt business operations and service delivery.

2. Arbitrary Code Execution: If the vulnerability is exploited successfully, it enables attackers to execute arbitrary code. This capability might allow attackers to gain unauthorized access to sensitive data and system controls, leading to potential data breaches.

3. Increased Attack Surface: Organizations using IBM MQ Appliance may face an increased attack surface, as the feasibility of exploiting this vulnerability could invite further attempts from malicious actors. This situation heightens the overall risk of cyber threats that could target organizational infrastructure.

References