🛡️ CVE-2025-36123 — db2

🟡 CVSS 6.2 — Medium ✅ No Known Exploit CWE-770 NVD

6.2

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.5.0 - 11.5.9 and 12.1.0 - 12.1.3 could allow a local user to cause a denial of service when copying large table containing XML data due to improper allocation of system resources.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2025-36123 is classified as CWE-770: Allocation of Resources Without Limits. Resources are allocated on request with no cap, so a client can exhaust them.

Affected software

CVE-2025-36123 is recorded against 1 package.

db2 (from 12.1.0 up to 12.1.3)

Timeline and source

Published on 30 January 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

www.ibm.com

CVE-2025-36123 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Ubuntu

Details

Severity MEDIUM

CVSS Score 6.2

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

CWE CWE-770

Public Exploit ✅ No

Source NVD

Published 2026-01-30

Updated 2026-08-11

Modified 2026-06-17

Fix URL https://www.ibm.com/support/pages/node/7257627

Affected Packages

Software	From version	Fixed in
db2	12.1.0	12.1.3

References

Patch, Vendor Advisory https://www.ibm.com/support/pages/node/7257627

🔗 NVD 🔗 Mitre ✅ Fix / Advisory

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