CVE-2025-33092: 
IBM Db2 vulnerability analysis and mitigation

IBM Db2 for Linux versions 12.1.0, 12.1.1, and 12.1.2 was identified with a stack-based buffer overflow vulnerability in the db2fm component (CVE-2025-33092). The vulnerability was disclosed on July 29, 2025, and is caused by improper bounds checking in the system. This security issue affects multiple versions of IBM Db2 for Linux, including versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.2 (IBM Security Bulletin).

The vulnerability is classified as a stack-based buffer overflow (CWE-121) that occurs in the db2fm component. It has received a CVSS v3.1 Base Score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. This scoring indicates that the vulnerability requires local access, low attack complexity, and low privileges, but can result in high impacts to confidentiality, integrity, and availability (IBM Security Bulletin, NVD).

If exploited, this vulnerability allows a local user to overflow the buffer and execute arbitrary code on the system, potentially leading to complete system compromise with high impacts on confidentiality, integrity, and availability of the affected system (IBM Security Bulletin).

IBM has released special builds containing interim fixes for affected versions. For version 11.5.9, users can apply Special Build #62071 or later. For version 12.1.1, Special Build #62100 or later is available, and for version 12.1.2, a latest build has been provided. Users are advised to update to these latest versions through the IBM Fix Central. No alternative workarounds have been identified (IBM Security Bulletin, ASEC Advisory).