CVE-2023-30987

Name: CVE-2023-30987
Creator: NVD / NIST
Published: 2023-10-16T21:15:10.627+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.78%

Last modified Jun 17, 2026

CVE-2023-30987 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain databases. IBM X-Force ID: 253440.. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

Description

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain databases. IBM X-Force ID: 253440.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.78%

51.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Ibm	Db2	>= 11.5, < 11.5.8
Ibm	Db2	10.5
Ibm	Db2	11.1.4

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/253440VDB Entry, Vendor Advisory
https://security.netapp.com/advisory/ntap-20231116-0006/Third Party Advisory
https://www.ibm.com/support/pages/node/7047560Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/253440VDB Entry, Vendor Advisory
https://security.netapp.com/advisory/ntap-20231116-0006/Third Party Advisory
https://www.ibm.com/support/pages/node/7047560Patch, Vendor Advisory

Timeline

Published: Oct 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-30987?

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain databases. IBM X-Force ID: 253440.

How severe is CVE-2023-30987?

CVE-2023-30987 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.

How do I fix CVE-2023-30987?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-30987?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST