IBM Db2 11.5.x12.1.x MQT DoS vuln
CVE-2026-113698 Published on November 8, 2026
IBM® Db2® is vulnerable to a denial of service when executing a specially crafted query with a Materialized Query Table
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to a denial of service when executing a specially crafted query with a Materialized Query Table.
Vulnerability Analysis
CVE-2026-113698 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-113698 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2026-113698
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Affected Versions
IBM Db2:- Version 11.5.0, <= 11.5.9 is affected.
- Version 12.1.0, <= 12.1.5 is affected.