High severity · published Sep 10, 2026
CVE-2026-87958
IBM® 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
8.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DB
Db2 · IBM
11.5.0 through 11.5.9; 12.1.0 through 12.1.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-87958
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-87958
Vendor Advisory
https://www.ibm.com/support/pages/node/7286987
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