What is CVE-2025-36365?

CVE-2025-36365 is a medium-severity vulnerability in IBM Db2, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.8/10. Published 2026-01-30.

How severe is CVE-2025-36365?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Auth bypass in IBM Db2

CVE-2025-36365

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 and 12.1.0 - 12.1.3 under specific configuration of cataloged remote storage aliases could allow an authenticated user to execute unauthorized commands due to an authorization bypass vulnerability using a user-controlled key.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Ibm Db2
Ibm Db2 For Linux, Unix And Windows — versions 11.5.0, 12.1.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

psirt@us.ibm.com (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-36365?: CVE-2025-36365 is a medium-severity vulnerability in IBM Db2, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.8/10. Published 2026-01-30.
How severe is CVE-2025-36365?: Medium severity. CVSS v3 base score is 6.8 out of 10.