IBM Db2 11.5.x/12.1.x: Local DOS via Improper Query Logic Neutralization
CVE-2025-36353 Published on January 30, 2026
IBM Db2 Denial of Service
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 and 12.1.0 - 12.1.3 could allow a local user to cause a denial of service due to improper neutralization of special elements in data query logic.
Vulnerability Analysis
CVE-2025-36353 can be exploited with local system access, and does not require authorization privileges or user interaction. 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
Improper Neutralization of Special Elements in Data Query Logic
The application generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query.
Products Associated with CVE-2025-36353
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Affected Versions
IBM Db2 for Linux, UNIX and Windows:- Version 11.5.0, <= 11.5.9 is affected.
- Version 12.1.0, <= 12.1.3 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.