Medium severity · published Jan 30, 2026
CVE-2025-2668
IBM Db2 Denial of Service
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable to a denial of service as the server may crash when an authenticated user creates a specially crafted query.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Db2 for Linux, UNIX and Windows · IBM
11.5.0 through 11.5.9 · source: vendor
DB
Db2 · Ibm
11.5.0 through 11.5.9; 11.5.0 through 11.5.9; 11.5.0 through 11.5.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-2668
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-2668
Patch
https://www.ibm.com/support/pages/node/7257518
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