CVE-2025-1493: 
IBM Db2 vulnerability analysis and mitigation

IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) versions 12.1.0 through 12.1.1 contains a vulnerability that could allow an authenticated user to cause a denial of service. The vulnerability was disclosed on May 5, 2025, and has been assigned CVE-2025-1493. The issue stems from concurrent execution of shared resources, which could be exploited by authenticated users to disrupt system operations (IBM Security Bulletin).

The vulnerability has been classified as CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). It has been assigned a CVSS Base Score of 5.3 (Medium) with the vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H. The vulnerability requires network access and low privileges for exploitation, though it has high attack complexity (IBM Security Bulletin, Wiz).

If successfully exploited, this vulnerability affects the availability of the system through a denial of service condition. The CVSS scoring indicates that while there is no impact on confidentiality or integrity, there is a high impact on availability. This means that authenticated users could potentially disrupt system operations, affecting service availability for other users (IBM Security Bulletin, Wiz).

IBM has released special builds containing interim fixes for affected versions. For V12.1.0, Special Build #52131 or later is available, and for V12.1.1, Special Build #54779 or later addresses the vulnerability. These special builds can be applied to any affected fixpack level of the appropriate release. No workarounds are available for this vulnerability, making patch application the only mitigation option (IBM Security Bulletin).