What is CVE-2025-33130?

CVE-2025-33130 is a medium-severity vulnerability in Ibm Db2_merge_backup, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2026-02-17.

How severe is CVE-2025-33130?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Ibm Db2_merge_backup

CVE-2025-33130

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 a buffer being overwritten when it is allocated on the stack.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (15.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ibm Db2_merge_backup — versions 12.1.0.0
Ibm Db2 Merge Backup For Linux, Unix And Windows — versions 12.1.0.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-33130?: CVE-2025-33130 is a medium-severity vulnerability in Ibm Db2_merge_backup, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2026-02-17.
How severe is CVE-2025-33130?: Medium severity. CVSS v3 base score is 6.5 out of 10.