PT-2026-5449 · Ibm · Db2 Connect Server+1

Published 2026-01-30 · Updated 2026-01-31 · CVE-2025-36123

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

AV:L/AC:L/PR:N/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 The software may allow a local user to cause a denial of service when copying large tables containing XML data. This is due to improper allocation of system resources.

Recommendations IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) versions 11.5.0 through 11.5.9 should be updated. IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) versions 12.1.0 through 12.1.3 should be updated.

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2025-36123

Affected Products

Db2 Connect Server

Ibm Db2 For Linux

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2025-36123 · Security Note
• https://ubuntu.com/security/CVE-2025-36123 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-36123 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-36123 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-36123 · Security Note
• https://twitter.com/CVEnew/status/2017354529696584153 · Twitter Post
• https://ibm.com/support/pages/node/7257627 · Patch, Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2017408470673219890 · Twitter Post
• https://t.me/cveNotify/150475 · Telegram Post
• https://t.me/CVEtracker/43338 · Telegram Post