CVE-2025-2668 — Memory Allocation with Excessive Size Value in IBM DB2

CWE-789 — Memory Allocation with Excessive Size ValueCWE-770 — Allocation of Resources Without Limits or Throttling5 documents5 sources
Severity
6.5MEDIUMNVD
EPSS
0.0%
top 94.52%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
IBM DB2
Timeline
PublishedJan 30
Latest updateJan 31

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:HExploitability: 2.8 | Impact: 3.6

Affected Packages1 packages

▶NVDibm/db211.5.0 — 11.5.9

Patches

Patch: www.ibm.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-29f9-wqmc-g6q2: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11↗2026-01-31
▶
OSV
CVE-2025-2668: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11↗2026-01-30
▶
CVEList
IBM Db2 Denial of Service↗2026-01-30
▶

🕵️Threat Intelligence

1
Wiz
CVE-2025-2668 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2025-2668 — IBM DB2 vulnerability | cvebase