Security Bulletin
Summary
Fixes to common vulnerabilities discovered in IBM Db2 High Performance Unload v12.1 are available to download from IBM.
Vulnerability Details
CVEID: CVE-2025-33126
DESCRIPTION: IBM Db2 High Performance Unload could allow an authenticated user to cause the program to crash due to the incorrect calculation of a buffer size.
CWE: CWE-131: Incorrect Calculation of Buffer Size
CVSS Source: IBM
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2025-33131
DESCRIPTION: IBM Db2 High Performance Unload could allow an authenticated user to cause the program to crash due to a buffer being overwritten when it is allocated on the stack.
CWE: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVSS Source: IBM
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2025-33133
DESCRIPTION: IBM Db2 High Performance Unload could allow an authenticated user to cause the program to crash due an out of bounds write.
CWE: CWE-787: Out-of-bounds Write
CVSS Source: IBM
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2025-33132
DESCRIPTION: IBM Db2 High Performance Unload could allow an authenticated user to cause the program to crash due to the incorrect calculation of the size of the data that is being pointed to.
CWE: CWE-467: Use of sizeof() on a Pointer Type
CVSS Source: IBM
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM DB2 High Performance Unload | 12.1.0.0 |
| IBM DB2 High Performance Unload | 6.5.0.4 |
Remediation/Fixes
Please download and install Interim Fix 12.1.0.0.1 or v6.5.0.4 Interim Fix 8 from Fix Central
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
27 Oct 2025: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
01 December 2025
UID
ibm17249336