What is CVE-2026-87958?

CVE-2026-87958 is a high-severity vulnerability in IBM Db2, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-09-10.

How severe is CVE-2026-87958?

High severity. CVSS v3 base score is 8.1 out of 10.

Privilege escalation in IBM Db2

CVE-2026-87958

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to a denial of service where a specific functionality on a Db2 server can be disabled by a privileged user under certain conditions.

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Affected products

Ibm Db2

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

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

Frequently asked questions

What is CVE-2026-87958?: CVE-2026-87958 is a high-severity vulnerability in IBM Db2, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-09-10.
How severe is CVE-2026-87958?: High severity. CVSS v3 base score is 8.1 out of 10.