CVE-2025-33124 Fixes to common vulnerabilities found in IBM Db2 Merge Backup for Linux, UNIX and Windows

Medium 6.5 Published Updated

An authenticated user can crash IBM DB2 Merge Backup due to incorrect buffer size calculation, requiring a patch to prevent denial of service.

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-2025-33124?

CVE-2025-33124 is a medium-severity vulnerability in IBM DB2 Merge Backup for Linux, UNIX and Windows, published on 17 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM DB2 Merge Backup for Linux, UNIX and Windows 12.1.0.0 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-2025-33124?

It affects 1 product.

Products include Ibm Db2 Merge Backup.

How do I fix CVE-2025-33124?

No fix has been published for CVE-2025-33124 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-33124 being exploited?

There is no known exploitation of CVE-2025-33124 in the wild and no public exploit code.

Sources

Also known as GHSA-5mcc-f9f9-29w9.

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