Buffer overflow in IBM Db2

CVE-2024-51473

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5.0.0 through 10.5.0.11, 11.1.0 through 11.1.4.7, 11.5.0 through 11.5.9, and 12.1.0 through 12.1.2 is vulnerable to a denial of service as the server may crash under certain conditions with a specially crafted query.

Vulnerability class: Buffer Overflow

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.003 (21.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-51473: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

  • IBM Db2 — versions 10.5.0.0, 11.1.0, 11.5.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-51473?
CVE-2024-51473 is a medium-severity vulnerability in IBM Db2, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2025-07-29.
How severe is CVE-2024-51473?
Medium severity. CVSS v3 base score is 6.5 out of 10.