What is CVE-2026-7771?

CVE-2026-7771 is a medium-severity vulnerability in Ibm Db2, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.5/10. Published 2026-07-17.

How severe is CVE-2026-7771?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Ibm Db2

CVE-2026-7771

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.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Ibm Db2 — versions 11.5.0, 12.1.0

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

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

Frequently asked questions

What is CVE-2026-7771?: CVE-2026-7771 is a medium-severity vulnerability in Ibm Db2, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.5/10. Published 2026-07-17.
How severe is CVE-2026-7771?: Medium severity. CVSS v3 base score is 5.5 out of 10.