PT-2026-5446 · Ibm · Db2 Connect Server+1

Published 2026-01-30 · Updated 2026-02-11 · CVE-2025-36009

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) versions 11.5.0 through 11.5.9 IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) versions 12.1.0 through 12.1.3

Description An unauthenticated user may be able to cause a denial of service. This is due to excessive use of a global variable within the software.

Recommendations Update IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) to a version later than 11.5.9. Update IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) to a version later than 12.1.3.

Fix

DoS

Weakness Enumeration

CWE-1108

CWE-1284

Related Identifiers

CVE-2025-36009

Affected Products

Db2 Connect Server

Ibm Db2 For Linux

References · 11

• https://osv.dev/vulnerability/UBUNTU-CVE-2025-36009 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-36009 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-36009 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-36009 · Security Note
• https://ubuntu.com/security/CVE-2025-36009 · Vendor Advisory
• https://t.me/cveNotify/151769 · Telegram Post
• https://t.me/CVEtracker/43341 · Telegram Post
• https://ibm.com/support/pages/node/7257695 · Patch, Vendor Advisory
• https://t.me/cveNotify/150472 · Telegram Post
• https://ibm.com/support/pages/node/7257623 · Patch, Vendor Advisory
• https://twitter.com/CVEnew/status/2017354526680862943 · Twitter Post