CVE-2025-33126 Fixes to common vulnerabilities found in IBM Db2 High Performance Unload

Medium 6.5 Published 27 Oct 2025 Updated 28 Oct 2025

An authenticated user can cause a denial of service in IBM DB2 High Performance Unload due to an integer overflow in buffer size calculation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-33126?

CVE-2025-33126 is a medium-severity vulnerability in IBM DB2 High Performance Unload, published on 27 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM DB2 High Performance Unload 6.1.0.3, 5.1.0.1, 6.1.0.2, 6.5, 6.5.0.0 IF1, 6.1.0.1, 6.1, 5.1, 6.1.0.3, 5.1.0.1, 6.1.0.2, 6.5, 6.5.0.0 IF1, 6.1.0.1, 6.1, 5.1, 6.1.0.3, 5.1.0.1, 6.1.0.2, 6.5, 6.5.0.0 IF1, 6.1.0.1, 6.1, 5.1, 6.1.0.3, 5.1.0.1, 6.1.0.2, 6.5, 6.5.0.0 IF1, 6.1.0.1, 6.1, and 5.1 could allow an authenticated user to cause the program to crash due to the incorrect calculation of a buffer size.

Weakness: CWE-131

Which versions are affected by CVE-2025-33126?

It affects 1 product.

Products include Ibm Db2 High Performance Unload Load.

How do I fix CVE-2025-33126?

No fix has been published for CVE-2025-33126 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-33126 being exploited?

There is no known exploitation of CVE-2025-33126 in the wild and no public exploit code.

Sources

Also known as GHSA-9266-4xcc-jjfm.