Vulnerability · Published Apr 30, 2026 · Assigned by ibm

CVE-2025-36122IBM® Db2® is vulnerable to a denial of service with a specially crafted query when stmtheap is set to automatic

Medium 6.5

In plain English

A medium-severity resource allocation without limits in Db2 from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.2%top 84.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.3 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service using a specially crafted SQL query due to improper allocation of system resources.

Affected products (as reported)

Vendor	Product	Versions
IBM	Db2	11.5.0 – through 11.5.912.1.0 – through 12.1.3

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

https://www.ibm.com/support/pages/node/7267642 vendor-advisory, patch