Vulnerability · Published Jul 17, 2026 · Assigned by ibm
CVE-2026-7771IBM® Db2® is vulnerable to a trap when compiling specially crafted statements containing subqueries could lead to a denial of service
Medium 5.5
In plain English
A medium-severity infinite loop 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 0.1% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.1%top 96.0% 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 trap when compiling a specially crafted statements containing subqueries could lead to a denial of service.
Affected products (as reported)
Weakness: CWE-835 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- https://www.ibm.com/support/pages/node/7279480 vendor-advisory, patch