Vulnerability · Published May 27, 2026 · Assigned by ibm
CVE-2026-6051IBM® Db2® is vulnerable to a denial of service when executing a specially crafted query with a small statement heap
Medium 5.5
In plain English
A medium-severity uncontrolled resource consumption 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 7% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 92.6% 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 12.1.4 is vulnerable to a denial of service when executing a specially crafted query with a small statement heap.
Affected products (as reported)
Weakness: CWE-400 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://www.ibm.com/support/pages/node/7273558 vendor-advisory, patch