Vulnerability · Published Sep 10, 2026 · Assigned by ibm

CVE-2026-87958IBM® Db2® 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

High 8.1

In plain English

A high-severity privilege mismanagement 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 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 68.1% 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 12.1.5 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.

Affected products (as reported)

Vendor	Product	Versions
IBM	Db2	11.5.0 – through 11.5.912.1.0 – through 12.1.5

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References

https://www.ibm.com/support/pages/node/7286987 vendor-advisory, patch